一体化波形设计最新文献精选摘要大全（1）

在读博士，顶尖高校A 学科专业，研究方向为雷达信号处理-波形设计。对导弹预警电子战太空站极为感兴趣，并定期分享学习收获以及世界最新科技研究成果报告总结，多多关注哦~

一体化波形设计 最新文献精选整理 （1）

• 1. Integrated radar and communication system based on stepped frequency continuous waveform
  • 基于步进频率连续波形的雷达通信一体化系统
  • 英文摘要
    • In this paper, a new system of integrated radar and communication which bases on stepped frequency continuous waveform is put forward. Specifically, firstly, the binary communication data are modulated into stepped frequency continuous waveform through BPSK modulation, which can make the communication data hide in the radar waveform. Secondly, we provide a signal separate method which can divide the radar signal and communication signal in the baseband mixed signal. So this integrated system can transmit binary data precisely with little influence on the radar sensing performance. Finally, we evaluate the radar sensing performance and wireless communication performance via simulation results. The results show that the proposed integrated system has a lower SER meanwhile guaranteeing the radar sensing performance.
  • 摘要翻译详解
    • 本文提出了一种基于步进频率连续波形的雷达与通信一体化系统。首先，通过BPSK调制将二进制通信数据调制成步进频率连续波形，使通信数据隐藏在雷达波形中。其次，提出了一种基带混合信号中雷达信号与通信信号分离的方法。因此，该集成系统可以在不影响雷达传感性能的情况下，精确地传输二进制数据。最后，通过仿真结果对雷达传感性能和无线通信性能进行了评估。结果表明，该集成系统在保证雷达感知性能的同时，具有较低的SER。
  • 目的：
    • 进行雷达与通信一体化系统设计
  • 方法：
    • 通过BPSK调制将二进制通信数据调制成步进频率连续波形
    • 提出了一种基带混合信号中雷达信号与通信信号分离的方法
  • 优势：
    • 该集成系统可以在不影响雷达传感性能的情况下，精确地传输二进制数据
    • 集成系统在保证雷达感知性能的同时，具有较低的SER。
• 2. Range and angle estimation for MIMO-OFDM integrated radar and communication systems
  • MIMO-OFDM综合雷达和通信系统的距离和角度估计
  • 英文摘要
    • To achieve the integration of radar and communication in waveform, we design an integrated system combining multi-input multi-output (MIMO) radar with orthogonal frequency division multiplexing (OFDM) communication. In the system, each antenna transmits integrated waveform with different sub-frequency bands. The integrated waveform is a variation of traditional OFDM communication waveform. To completely utilize the array aperture and the entire signal bandwidth, a range and angle estimation method is proposed. First, the high resolution angle estimation is performed, and then the range estimation with high resolution is obtained. Theoretical analysis validates that the devised system can attain the radar and communication function simultaneously, and the proposed method has low computational complexity. Numerical results are presented to verify the effectiveness of the proposed method.
  • 摘要翻译详解
    • 为了实现雷达与通信在波形上的融合，我们设计了一种多输入多输出(MIMO)雷达与正交频分复用(OFDM)通信相结合的集成系统。在该系统中，每个天线发射不同子频带的集成波形。集成波形是传统OFDM通信波形的一种变化。为了充分利用阵列孔径和整个信号带宽，提出了一种距离和角度估计方法。首先进行高分辨率角度估计，然后得到高分辨率距离估计。理论分析表明，所设计的系统能够同时实现雷达和通信功能，且计算复杂度低。数值结果验证了该方法的有效性。
  • 目的：
    • 为了实现雷达与通信在波形上的融合，设计一种雷达通信集成系统
  • 方法：
    • MIMO+OFDM
    • 每个天线发射不同子频带的集成波形
    • 充分利用阵列孔径和整个信号带宽，提出了一种距离和角度估计方法
  • 优势：
    • 能够同时实现雷达和通信功能，且计算复杂度低。数值结果验证了该方法的有效性。
• 3. Waveform design for high speed radar-communication integration
  • 高速雷达通信一体化波形设计
  • 英文摘要
    • The integration of radar and communication is a good way to achieving miniaturization of the equipment, easing the tension of spectrum resource and reducing the interference between the radar and communication equipment. Recent research mainly concentrates on realizing the function of transmission and detection in one integrated equipment and improving the performance of radar with the random communication symbols, while improving the spectrum efficiency in communication is lack of study, which is also very important with the rapid growth of the need for multimedia transmission in either vehicular networking or battlefield. In this paper, based on multicarrier chirp signal (OFD-LFM), a spectrum effective integrated waveform with multiple symbols on each pulse is proposed and demodulation algorithm is work out. Simulation results show that optimal demodulation can be achieved simply by addition, subtraction and matching filtering, and the ambiguity function won't be influenced by the random communication symbols.
  • 摘要翻译详解
    • 雷达与通信一体化是实现设备小型化、缓解频谱资源紧张、减少雷达与通信设备之间干扰的好方法。最近的研究主要集中于实现传输和检测的功能集成在一个设备,提高雷达的性能与随机通信符号,而沟通是提高频谱效率缺乏研究,这也是非常重要的快速增长需要多媒体传输车辆网络或战场。本文基于多载波调频信号(OFD-LFM)，提出了每个脉冲上有多个符号的频谱有效集成波形，并给出了解调算法。仿真结果表明，通过简单的加、减和匹配滤波可以实现最优解调，且模糊函数不受随机通信符号的影响。
  • 目的：
    • 为实现小型化设备，缓解频谱资源紧张，减少雷达通信设备间干扰
  • 方法：
    • 多载波调频信号(OFD-LFM)，提出了每个脉冲上有多个符号的频谱有效集成波形，并给出了解调算法
  • 优势：
    • 通过简单的加、减和匹配滤波可以实现最优解调
    • 模糊函数不受随机通信符号的影响
• 4. Low Probability of Intercept-Based Optimal OFDM Waveform Design Strategy for an Integrated Radar and Communications System
  • 雷达通信一体化系统中基于低截获概率的最优正交频分复用波形设计策略
  • 英文摘要
    • The integration of radar and communications systems can provide great advantages, such as enhanced efficiency, structure simplification, less occupied hardware resources, and interference mitigation, compared with traditional individual radar and communications applications. Extensive studies have presented achieving improved system performance, whereas the problem of low probability of intercept (LPI)-based waveform design for the integrated system is seldom discussed in the literature. In this paper, an LPI-based optimal orthogonal frequency multiplexing modulation (OFDM) waveform design strategy is developed for an integrated radar and communications system (IRCS). The dedicated transmitter in this system transmits integrated OFDM waveform for simultaneously target parameter estimation and downlink communications. The basis of the underlying strategy is to employ the optimization technique to design the integrated OFDM waveform of IRCS in order to minimize the total radiated power, while satisfying the specified requirements of target parameter estimation and data information rate. We analytically show that the resulting optimization problem is convex and can be solved by formulating the Karush-Kuhn-Tuckers optimality conditions. Numerical simulation results demonstrate that our proposed strategy can solve the waveform design problem in the IRCS with low complexity, and the LPI performance of the IRCS can efficiently be enhanced by utilizing the proposed integrated OFDM waveform design strategy.
  • 摘要翻译详解
    • 与传统的单个雷达和通信应用相比，雷达和通信系统的集成具有极大的优势，如效率提高、结构简化、硬件资源占用少、干扰减少等。大量的研究提出了提高系统性能的方法，而文献中很少讨论基于低截获概率(LPI)的集成系统波形设计问题。本文提出了一种适用于雷达与通信集成系统(IRCS)的基于lpi的最优正交频率复用调制(OFDM)波形设计策略。该系统的专用发射机传输集成的OFDM波形，同时进行目标参数估计和下行通信。该策略的基础是在满足目标参数估计和数据信息率的规定要求的前提下，利用优化技术设计IRCS的OFDM集成波形，使总辐射功率最小。我们分析地证明了所得到的优化问题是凸的，并且可以通过阐明Karush-Kuhn-Tuckers最优性条件来解决。数值仿真结果表明，所提出的策略能够以较低的复杂度解决IRCS的波形设计问题，并且利用所提出的集成OFDM波形设计策略可以有效地提高IRCS的LPI性能。
  • 目的：
    • 解决基于低截获概率(LPI)的集成系统波形设计问题
  • 方法：
    • 适用于雷达与通信集成系统(IRCS)的基于lpi的最优正交频率复用调制(OFDM)波形设计策略
  • 优势：
    • 在满足目标参数估计和数据信息率的规定要求的前提下，利用优化技术设计IRCS的OFDM集成波形，使总辐射功率最小
    • 数值仿真结果表明，所提出的策略能够以较低的复杂度解决IRCS的波形设计问题，并且利用所提出的集成OFDM波形设计策略可以有效地提高IRCS的LPI性能。
• 5. A Design of Communication Radar Integrated Signal of MCPC Based on Costas Coding
  • 基于Costas编码的MCPC通信雷达综合信号设计
  • 英文摘要
    • In recent years, communication radar integration research has received extensive attention. The communication radar system based on waveform multiplexed signals has a high degree of integration, and it is one of the hotspots in communication radar integration research direction. In this paper, a communication radar integrated signal of MCPC (Multi-carrier Complementary Phase-coded) based on Costas coding is proposed. By analyzing the ambiguity function of MCPC signal, we can know that the system using this signal has excellent radar detection capability. The subcarriers of the signal are encoded by Costas array, enabling them to carry communication information efficiently. The simulation results show that the communication radar integrated system using this signal has better radar detection and communication capabilities, which can meet the needs of practical applications.
  • 摘要翻译详解
    • 近年来，通信雷达集成研究受到了广泛关注。基于波形复用信号的通信雷达系统具有高度的集成度，是通信雷达集成化研究方向的热点之一。提出了一种基于Costas编码的多载波互补相位编码(MCPC)通信雷达集成信号。通过分析MCPC信号的模糊函数可知，采用该信号的系统具有良好的雷达探测能力。信号的子载波被Costas阵列编码，使它们能够有效地携带通信信息。仿真结果表明，采用该信号的通信雷达集成系统具有较好的雷达探测和通信能力，能够满足实际应用的需要。
  • 目的：
    • 设计一种通信雷达集成信号
  • 方法：
    • 提出了一种基于Costas编码的多载波互补相位编码(MCPC)通信雷达集成信号
    • 分析MCPC信号的模糊函数
  • 优势：
    • 具有良好的雷达探测能力和通信能力
• 6. Integrated Waveform for a Joint Radar-Communication System With High-Speed Transmission
  • 高速传输的雷达-通信联合系统集成波形
  • 英文摘要
    • Joint radar-communication systems based on integrated waveforms can simultaneously realize high-speed data transmission and target detection in one device, providing information sharing networks and information sources for decision-making of intelligent transportation systems. In this letter, based on a combination of linear frequency modulation (LFM) signals and continuous phase modulation (CPM) signals with an adjustment of communication symbols of length k, an integrated waveform k-LFM-CPM and a complete system framework cascaded with low-density parity-check (LDPC) codes is carried out. With a limited bandwidth, this system achieves a better bit-error rate than original LFM-CPM-LDPC systems, benefiting from an almost non-broadening power spectrum and additional information used in the cascaded decoding process. Finally, through the optimization of the mismatched filter, it is verified that the detection performance of the integrated waveform with accumulation is almost the same as that of the LFM signal.
  • 摘要翻译详解
    • 基于集成波形的雷达-通信联合系统可以在一个设备内同时实现高速数据传输和目标检测，为智能交通系统的决策提供信息共享网络和信息源。本文以线性调频(LFM)信号和调整通信符号长度为k的连续相位调制(CPM)信号为基础，实现了k-LFM-CPM集成波形和低密度奇偶校验(LDPC)码级联的完整系统框架。在有限的带宽下，该系统比原来的LFM-CPMLDPC系统获得了更好的误码率，受益于几乎不增宽的功率谱和在级联解码过程中使用的附加信息。最后，通过对失配滤波器的优化，验证了累积积分波形的检测性能与线性调频信号的检测性能基本相同。
  • 目的：
    • 为智能交通系统的决策提供信息共享网络和信息源
  • 方法：
    • 以线性调频(LFM)信号和调整通信符号长度为k的连续相位调制(CPM)信号为基础，实现了k-LFM-CPM集成波形和低密度奇偶校验(LDPC)码级联的完整系统框架
  • 优势：
    • 在有限的带宽下，该系统比原来的LFM-CPMLDPC系统获得了更好的误码率
    • 该一体化波形的检测性能与线性调频信号的检测性能基本相同
• 7. Method of Waveform Design for Radar and Communication Integrated System Based on CSS
  • 基于CSS的雷达与通信集成系统波形设计方法
  • 英文摘要
    • Radar and communication integrated system has been a development trend of technologies. To resolve existing problems of integrated systems, this paper presents a novel method of waveform design for radar and communication integrated system based on chirped spread spectrum (CSS) and proposes the structure of the integrated system. The advantage of this system is that different functions can be realized in a same platform but without jamming between each other. Performance analysis and simulation results show that the proposed system can be efficiently implemented and meet practical demands.
  • 摘要翻译详解
    • 雷达与通信集成系统一直是技术发展的趋势。为了解决集成系统存在的问题，本文提出了一种基于线性调频扩频（CSS）的雷达与通信集成系统波形设计的新方法，并提出了集成系统的结构。该系统的优点是可以在同一平台上实现不同的功能，而不会彼此干扰。性能分析和仿真结果表明，所提出的系统可以有效地实现并满足实际需求。
  • 目的：
    • 波形设计的新方法，为解决集成系统所存在的问题
  • 方法：
    • 提出了一种基于线性调频扩频（CSS）的雷达与通信集成系统波形设计的新方法，并提出了集成系统的结构
  • 优势：
    • 性能分析和仿真结果表明，所提出的系统可以有效地实现并满足实际需求。
• 8. Integrated waveform design for an Integrated Radar and Communication System with a Uniform Linear Array
  • 具有均匀线性阵列的集成雷达和通信系统的集成波形设计
  • 英文摘要
    • To reduce the consumption of spectrum and hardware resource, two methods are proposed to design the integrated waveform that can satisfy the requirements for both radar and communication. First, a linear superposition (LS) method is proposed to design the transmit waveforms of a uniform linear array (ULA). In the far field of the ULA, the designed transmit waveforms can simultaneously synthesize the desired radar and communication waveforms in different directions. However, the designed waveforms usually have high peak-to-average power ratio (PAPR). Then, an alternative projection (AP) method is proposed to reduce the PAPR of the transmit waveforms. The AP method can devise the waveforms with constant modulus. Both the proposed methods can perform radar and communication function in different directions. Finally, several simulation results are given to verify the effectiveness of the proposed methods.
  • 摘要翻译详解
    • 为了减少频谱和硬件资源的消耗，提出了两种方法来设计能够同时满足雷达和通信要求的积分波形。首先，提出了一种线性叠加（LS）方法来设计均匀线性阵列（ULA）的发射波形。在ULA的远场中，设计的发射波形可以同时在不同方向上合成所需的雷达和通信波形。但是，设计波形通常具有较高的峰均功率比（PAPR）。然后，提出了一种替代投影（AP）方法来减小发射波形的PAPR。 AP方法可以设计出具有恒定模数的波形。两种方法都可以在不同方向上执行雷达和通信功能。最后，给出了一些仿真结果以验证所提方法的有效性。
  • 目的：
    • 为了减少频谱和硬件资源的消耗，设计一种新波形
  • 方法：
    • 提出了一种线性叠加（LS）方法来设计均匀线性阵列（ULA）的发射波形
  • 优势：
    • 设计的发射波形可以同时在不同方向上合成所需的雷达和通信波形
    • 设计波形通常具有较高的峰均功率比（PAPR）。然后，提出了一种替代投影（AP）方法来减小发射波形的PAPR
• 9. Spectrum extension research of Radar-communication integrated waveform
  • 雷达通信综合波形的频谱扩展研究
  • 英文摘要
    • Integration of radar and communication is an important trend in the future development of radar technology. The combination of radar and communication allows them to give full play of their respective superiority while make up for their deficiencies. As a result, the detection radar becomes communication radar, a network platform for information giving, which will immensely enhance the force of battle group. The key of Radar-communication integration is the design of integrated waveform. A practicable waveform is to modulate Minimum Shift Keying (MSK) signal onto Linear Frequency Modulation (LFM) signal, but the problem is the likelihood of leading to the extension of the spectrum, which will seriously affect the performance of radar detection and communication. To solve the problem, this paper will elaborate from the following aspects: 1. Mathematical expression of the integrated waveform in order to deduce the reason of spectrum extension and propose solutions accordingly. 2. Application of MATLAB in the simulation of spectrum extension [1] and result of limiting spectrum extension using the algorithm proposed in this paper. 3. The practicability of the method proposed by in this paper by implementing integrated waveform and algorithm on FPGA using VHDL language.
  • 摘要翻译详解
    • 雷达与通信的集成是未来雷达技术发展的重要趋势。雷达和通信的结合使他们可以充分发挥各自的优势，同时弥补其不足。结果，探测雷达变成了通信雷达，一个提供信息的网络平台，将极大地增强战斗群的力量。雷达通信集成的关键是集成波形的设计。可行的波形是将最小频移键控（MSK）信号调制为线性调频（LFM）信号，但是问题在于可能导致频谱扩展，这将严重影响雷达检测和通信的性能。为解决该问题，本文将从以下几个方面进行阐述：1.积分波形的数学表达式，以便推断频谱扩展的原因并提出相应的解决方案。 2. MATLAB在频谱扩展仿真中的应用[1]和使用本文提出的算法来限制频谱扩展的结果。 3.本文提出的方法的实用性是通过使用VHDL语言在FPGA上实现集成波形和算法。
  • 目的：
    • 雷达和通信的结合使他们可以充分发挥各自的优势，同时弥补其不足
    • 可行的波形是将最小频移键控（MSK）信号调制为线性调频（LFM）信号，但是问题在于可能导致频谱扩展，为解决该问题，设计一种新波形
  • 方法：
    • 1.积分波形的数学表达式，以便推断频谱扩展的原因并提出相应的解决方案。
    • 通过使用VHDL语言在FPGA上实现集成波形和算法。
  • 优势：
    • 解决频谱扩展问题
• 10. Tunable Filter Design for Integrated Radar and Communication Waveforms
  • 集成雷达和通信波形的可调滤波器设计
  • 英文摘要
    • In an integrated radar and communication system, the filter output of each pulse of the integrated radar and communication waveform usually has high sidelobe level (SLL) and signal-to-noise ratio (SNR) loss as well as serious range sidelobe modulation (RSM). To solve these problems, a joint weighted optimization (JWO) method is proposed to design the filters. In this method, the filters for different integrated radar and communication waveforms are designed by jointly minimizing the RSM, SNR loss, and SLL according to different practical demands. In terms of the RSM, SNR loss, and SLL, the performance of the designed filters is tunable by reasonably changing the weight factors. Finally, several numerical results are presented to verify the effectiveness of the proposed method.
  • 摘要翻译详解
    • 在集成雷达和通信系统中，集成雷达和通信波形的每个脉冲的滤波器输出通常具有较高的旁瓣电平（SLL）和信噪比（SNR）损耗以及严重的旁瓣调制（RSM） 。为了解决这些问题，提出了一种联合加权优化（JWO）方法来设计滤波器。在这种方法中，根据不同的实际需求，通过共同最小化RSM，SNR损耗和SLL来设计用于不同集成雷达和通信波形的滤波器。在RSM，SNR损耗和SLL方面，可以通过合理地更改权重因子来调整设计滤波器的性能。最后，给出了几个数值结果，验证了所提方法的有效性。
  • 目的：
    • 为解决集成雷达和通信波形的每个脉冲的滤波器输出通常具有较高的旁瓣电平（SLL）和信噪比（SNR）损耗以及严重的旁瓣调制（RSM）
  • 方法：
    • 提出了一种联合加权优化（JWO）方法来设计滤波器
    • 通过共同最小化RSM，SNR损耗和SLL来设计用于不同集成雷达和通信波形的滤波器
    • 在RSM，SNR损耗和SLL方面，可以通过合理地更改权重因子来调整设计滤波器的性能
  • 优势：
    • 降低集成雷达和通信波形的每个脉冲的滤波器输出通常具有较高的旁瓣电平（SLL）和信噪比（SNR）损耗以及严重的旁瓣调制（RSM）
• 11. Waveform design for joint radar-communication system with multi-user based on MIMO radar
  • 基于MIMO雷达的多用户联合雷达通信系统的波形设计
  • 英文摘要
    • The joint radar-communication system integrates the function of detection and data transmission to reduce interference and improve the overall spectrum efficiency, as well as to reduce total volume of devices in vehicles, which is widely used in the intelligent transportation systems. Among these joint systems, a MIMO radar based system has significant advantage for multi users with orthogonal waveforms transmitted by each antenna. In order to realize high speed transmission, a quasi-orthogonal multi-carrier LFM-CPM waveform is proposed for the joint system. This waveform preserves the characteristics of LFM with constant envelope and continuous phase, so that the distortion caused by the nonlinearity of the high power amplifier and the reduction of effective working distance can be avoided. The spectral efficiency of the proposed waveform is much higher than the 1-bit multi-carrier LFM waveform and simulation of bit error rate (BER) performance is close to that of single-carrier LFM-CPM with no interference. The simulation of ambiguity function shows that the random communication symbols has little influence on the radar subsystem. In a word, the shared waveform based on multi-carrier LFM-CPM and MIMO radar can meet the need of the detection and multi-user transmission at the same time, and is suitable for the intelligent transportation systems.
  • 摘要翻译详解
    • 联合雷达通信系统集成了检测和数据传输功能，以减少干扰并提高整体频谱效率，并减少车辆中设备的总体积，这在智能交通系统中得到了广泛的应用。在这些联合系统中，基于MIMO雷达的系统对于具有每个天线发射的正交波形的多用户而言具有显着优势。为了实现高速传输，提出了一种用于联合系统的准正交多载波LFM-CPM波形。该波形保留了具有恒定包络和连续相位的LFM特性，从而避免了由高功率放大器的非线性引起的失真和有效工作距离的减小。所提出波形的频谱效率远高于1位多载波LFM波形，并且误码率（BER）性能的模拟接近于单载波LFM-CPM，没有干扰。模糊函数的仿真表明，随机通信符号对雷达子系统影响很小。总之，基于多载波LFM-CPM和MIMO雷达的共享波形可以同时满足检测和多用户传输的需求，适用于智能交通系统。
  • 目的：
    • 为了实现高速传输，多用户传输
  • 方法：
    • 提出了一种用于联合系统的准正交多载波LFM-CPM波形
  • 优势：
    • 该波形保留了具有恒定包络和连续相位的LFM特性
    • 避免了由高功率放大器的非线性引起的失真和有效工作距离的减小
    • 误码率（BER）性能的模拟接近于单载波LFM-CPM，没有干扰
    • 基于多载波LFM-CPM和MIMO雷达的共享波形可以同时满足检测和多用户传输的需求
• 12. Optimization design of communication-radar integrated waveform generation system
  • 通信雷达综合波形发生系统的优化设计
  • 英文摘要
    • With the increasingly complex electromagnetic and transmission environment, in order to reduce the volume of the platform and the mutual interference of the communication radar signals, the demand of the integrated platform is more and more strong. Based on the integrated method of radar communication, three kinds of ways of integration are summarized, and the existing design scheme is introduced in the paper. And then analysis of the program found output frequency instability problems by using direct digital frequency synthesis technology. Therefore, we propose the integration system optimization design based on FPGA and DSP to control DDS. The stability of output frequency is improved by the feedback of the system, and the stability of the output frequency is increased. The simulation results show that the proposed scheme has a better stabilizing effect on the output frequency.
  • 摘要翻译详解
    • 随着电磁和传输环境的日益复杂，为了减小平台的体积和通信雷达信号的相互干扰，集成平台的需求越来越强。基于雷达通信的集成方法，总结了三种集成方法，并介绍了现有的设计方案。然后对该程序进行分析，通过直接数字频率合成技术发现了输出频率不稳定的问题。因此，我们提出了一种基于FPGA和DSP控制DDS的集成系统优化设计。通过系统的反馈提高了输出频率的稳定性，并提高了输出频率的稳定性。仿真结果表明，该方案对输出频率具有较好的稳定效果。
  • 目的：
    • 为解决：直接数字频率合成技术而导致的输出频率不稳定的问题。
  • 方法：
    • 提出了一种基于FPGA和DSP控制DDS的集成系统优化设计。
  • 优势：
    • 该方案对输出频率具有较好的稳定效果
• 13. Super-Resolution Range and Velocity Estimations With OFDM Integrated Radar and Communications Waveform
  • OFDM集成雷达和通信波形的超分辨率范围和速度估计
  • 英文摘要
    • In the intelligent transportation system, it is an efficient way for the intelligent vehicle to use the integrated radar and communications system (IRCS) to obtain the range and velocity estimations of other vehicles and simultaneously communicate with other facilities, such as vehicles and base stations. In the IRCS, the transmitted waveform is the orthogonal frequency division multiplexing (OFDM) integrated radar and communications waveform that contains communications information. Due to the existence of communications information, the traditional range and velocity estimation methods in radar can not be directly utilized in the IRCS. Moreover, to improve the resolution of range and velocity estimations, the signal bandwidth and coherent processing interval (CPI) are usually required to be increased, which will result in the increase of system cost and the reduction of update rate. To solve these problems, a auto-paired super-resolution range and velocity estimation method is proposed by using the OFDM integrated radar and communications waveform. First, the communications information in the received signals is compensated. Then, the frequency smoothing is performed to reduce the correlation between the echoes reflected by different targets. Finally, the auto-paired super-resolution range and velocity estimations are obtained by exploiting the translational invariance structure of the underlying signal model in both frequency and pulse domains. Furthermore, Cramér-Rao bounds (CRBs) on range and velocity estimations with the OFDM integrated radar and communications waveform are derived. Several numerical examples are presented to verify the effectiveness of the proposed method.
  • 摘要翻译详解
    • 在智能交通系统中，智能车辆使用集成的雷达和通信系统（IRCS）来获取其他车辆的距离和速度估算值，并同时与其他设施（例如车辆和基站）进行通信是一种有效的方法。在IRCS中，发送的波形是正交频分复用（OFDM）集成雷达和包含通信信息的通信波形。由于通信信息的存在，雷达中传统的距离和速度估计方法无法直接在IRCS中使用。而且，为了提高距离和速度估计的分辨率，通常需要增加信号带宽和相干处理间隔（CPI），这将导致系统成本的增加和更新率的降低。为了解决这些问题，提出了一种使用OFDM集成雷达和通信波形的自动配对超分辨率测距和速度估计方法。首先，对接收信号中的通信信息进行补偿。然后，执行频率平滑以减小不同目标反射的回波之间的相关性。最后，通过利用基础信号模型在频域和脉冲域中的平移不变性结构，可以获得自动配对的超分辨率范围和速度估计。此外，还推导了使用OFDM集成雷达和通信波形进行距离和速度估计的Cramér-Rao界限（CRB）。几个数值例子被提出来验证所提方法的有效性。
  • 目的：
    • 为解决提高距离和速度估计的分辨率导致系统成本的增加和更新率的降低的问题
  • 方法：
    • 提出了一种使用OFDM集成雷达和通信波形的自动配对超分辨率测距和速度估计方法
    • 对接收信号中的通信信息进行补偿
    • 执行频率平滑以减小不同目标反射的回波之间的相关性
    • 通过利用基础信号模型在频域和脉冲域中的平移不变性结构，可以获得自动配对的超分辨率范围和速度估计
  • 优势：
    • 可降低因提高距离和速度估计的分辨率而导致系统成本的增加和更新率的降低的问题
• 14. Design of integrated radar and communication system based on MIMO-OFDM waveform
  • 基于MIMO-OFDM波形的雷达与通信系统集成设计
  • 英文摘要
    • Orthogonal frequency division multiplexing (OFDM) waveform enables radar and communication functions simultaneously, which encounters low angle resolution and poor data rate for traditional single input single output (SISO) systems. To solve these problems, an integrated radar and communication system (IRCS) with multiple input multiple output (MIMO) OFDM waveform is proposed. The different limitations of radar and communication in designing such a system are investigated. Then, an optimization problem is devised to obtain suitable system parameters, including the number of subcarriers, subcarrier spacing, number of symbols, pulse repetition frequency (PRF) and length of cyclic prefix (CP). Finally, to satisfy the requirements of both radar and communication, the IRCS parameters are derived in three typical cases. Several numerical results are presented to illustrate the demands of radar and communication, inconsistent or consistent, for the IRCS parameters and the superiority of the proposed system.
  • 摘要翻译详解
    • 正交频分复用（OFDM）波形可同时启用雷达和通信功能，而传统的单输入单输出（SISO）系统遇到的角度分辨率较低且数据率较低。为了解决这些问题，提出了具有多输入多输出（MIMO）OFDM波形的集成雷达和通信系统（IRCS）。研究了雷达和通信在设计这种系统时的不同局限性。然后，设计一个优化问题以获得合适的系统参数，包括子载波的数量，子载波间隔，符号的数量，脉冲重复频率（PRF）和循环前缀的长度（CP）。最后，为了满足雷达和通信的要求，在三种典型情况下得出了IRCS参数。给出了几个数值结果来说明雷达和通信对IRCS参数的要求或一致性，以及所提出系统的优越性。
  • 目的：
    • 提出了具有多输入多输出（MIMO）OFDM波形的集成雷达和通信系统（IRCS）
  • 方法：
    • 研究了雷达和通信在设计这种系统时的不同局限性
    • 设计一个优化问题以获得合适的系统参数，包括子载波的数量，子载波间隔，符号的数量，脉冲重复频率（PRF）和循环前缀的长度（CP）
    • 为了满足雷达和通信的要求，在三种典型情况下得出了IRCS参数
  • 优势：
    • 给出了几个数值结果来说明雷达和通信对IRCS参数的要求或一致性，以及所提出系统的优越性
• 15. Adaptive OFDM Integrated Radar and Communications Waveform Design Based on Information Theory
  • 基于信息论的自适应OFDM集成雷达与通信波形设计
  • 英文摘要
    • To improve the effectiveness of limited spectral resources, an adaptive orthogonal frequency division multiplexing integrated radar and communications waveform design method is proposed. First, the conditional mutual information (MI) between the random target impulse response and the received signal, and the data information rate (DIR) of frequency selective fading channel are formulated. Then, with the constraint on the total power, the optimization problem, which simultaneously considers the conditional MI for radar and DIR for communications, is devised, and the analytic solution is derived. With low transmit power, the designed integrated waveform outperforms the fixed waveform (i.e., equal power allocation). Finally, several simulated experiments are provided to verify the effectiveness of the
  • 摘要翻译详解
    • 为了提高有限频谱资源的有效性，提出了一种自适应正交频分复用集成雷达与通信波形设计方法。首先，制定随机目标冲激响应与接收信号之间的条件互信息（MI），以及频率选择性衰落信道的数据信息速率（DIR）。然后，在总功率的约束下，设计了同时考虑雷达的条件MI和通信的DIR的优化问题，并得出了解析解。在低发射功率的情况下，设计的积分波形优于固定波形（即相等的功率分配）。最后，提供了一些模拟实验来验证这种方法的有效性。
  • 目的：
    • 提出了一种自适应正交频分复用集成雷达与通信波形设计方法
  • 方法：
    • 制定随机目标冲激响应与接收信号之间的条件互信息（MI）
    • 以及频率选择性衰落信道的数据信息速率（DIR）
    • 在总功率的约束下，设计了同时考虑雷达的条件MI和通信的DIR的优化问题，并得出了解析解
  • 优势：
    • 提供了一些模拟实验来验证这种方法的有效性
• 16. Integrated Waveform Design Based on Spread Spectrum OFDM Radar Communication
  • 基于扩频OFDM雷达通信的集成波形设计
  • 英文摘要
    • Along with radio technological development, radar-communication integration has become a new research hotspot in information field, and the design of integrated waveform is one of the key technologies. In the study, the authors propose a novel waveform design by using spread spectrum technology and OFDM modulation, and derive the ambiguity function (AF) of integrated waveform. The theoretical analysis shows that the correlations of spread spectrum code and modulation communication data have influence on the performance of integrated signal AF. The analysis of integrated signal is transformed into the performance analysis of pseudo-random sequence. According to the simulation, different Settings of the spread factor have some influence on the sidelobe value of the range AF, and performance of the Gold sequence is better in proposed method. This conclusion can be used to realize integration of radar and communication.
  • 摘要翻译详解
    • 随着无线电技术的发展，雷达通信集成已成为信息领域的一个新研究热点，集成波形的设计是关键技术之一。在研究中，作者提出了一种利用扩频技术和OFDM调制的新颖波形设计，并推导了积分波形的模糊函数（AF）。理论分析表明，扩频码与调制通信数据的相关性对积分信号AF的性能有影响。将积分信号的分析转换为伪随机序列的性能分析。根据仿真，扩展因子的不同设置对范围AF的旁瓣值有一定影响，并且该方法的Gold序列性能更好。该结论可用于实现雷达与通信的融合。
  • 目的：
    • 设计一种一体化波形
  • 方法：
    • 提出了一种利用扩频技术和OFDM调制的新颖波形设计，并推导了积分波形的模糊函数（AF）
    • 理论分析表明，扩频码与调制通信数据的相关性对积分信号AF的性能有影响。将积分信号的分析转换为伪随机序列的性能分析
  • 优势：
    • 扩展因子的不同设置对范围AF的旁瓣值有一定影响，并且该方法的Gold序列性能更好。该结论可用于实现雷达与通信的融合。