一种面向低成本轻量级雷达的单比特复用阵列信号收发框架  

A Single-bit Multiplexing Array Signal Transceiver Framework for Low-cost Lightweight Radar

作　　者：冯力方 黄磊[1,2] 周汉飞[1,2] 李强[1,2] 刘仕奇 张沛昌 FENG Lifang;HUANG Lei;ZHOU Hanfei;LI Qiang;LIU Shiqi;ZHANG Peichang(College of Electronics and Information Engineering,Shenzhen University,Shenzhen 518060,China;State Key Laboratory of Radio Frequency Heterogeneous Integration,Shenzhen University,Shenzhen 518060,China)

机构地区：[1]深圳大学电子与信息工程学院,深圳518060 [2]深圳大学射频异质异构集成全国重点实验室,深圳518060

出　　处：《雷达学报（中英文）》2024年第1期134-149,共16页Journal of Radars

基　　金：国家自然科学基金(62101347,62371306);国家杰出青年科学基金(61925108);国家自然科学基金国际合作与交流重点项目(62220106009);广东省基础与应用基础研究基金(2021A1515011855,2022A1515110125);深圳市孔雀团队项目(KQTD20210811090051046);深圳大学2035卓越研究计划;湖州市太赫兹集成电路与系统重点实验室基金(HKLTICY23KF04);深圳市基础研究项目(20220810142731001,20200823154213001)。

摘　　要：面向低成本轻量级雷达的应用需求,该文提出了一种联合单比特采样量化和时分复用接收机的雷达信号收发框架。首先,通过介绍该框架的工作原理,阐述其在节省接收机数量方面的优势。从雷达资源配置的角度,分析了单比特采样量化在该框架中的重要性,并提出了该框架可利用时间换空间,获得比经典线性调频连续波雷达更好的探测性能。接着,推导了雷达测距、测速和测角公式,以及目标参数估计的克拉美罗界。在此基础上,验证了该框架的性能优势,同时也给出了其稳定工作的信噪比条件。最后,利用一种基于单比特二维多重信号分类的速度维配对算法,验证了该框架获取目标原理的正确性,以及性能分析的可靠性。This paper proposes a radar signal transceiver framework that combines single-bit sampling and time division multiplexing receivers to satisfy the application requirements of low-cost lightweight radars.Firstly,this paper explains the advantages of saving the number of receivers by introducing the working principle of the framework.From the perspective of radar resource allocation,the importance of single-bit sampling in this framework was analyzed;additionally,the proposed framework can achieve better performance than a classical linear frequency modulation continuous wave radar using time and space exchange.Subsequently,the formulas for range,velocity and angle measurement were derived,along with the Cramér-Rao bound for estimating target parameters.Accordingly,the performance advantages of the proposed framework were verified,and the signal-to-noise ratio conditions for its stable operation were determined.Finally,this paper verifies the accuracy of the target acquisition principle of the proposed framework and the reliability of the performance analysis by using a velocity dimensional pairing algorithm based on single-bit two-dimensional multiple signal classification.

关 键 词：低成本轻量级雷达 线性调频连续波雷达 单比特采样 时分复用 雷达资源配置 

分 类 号：TN974[电子电信—信号与信息处理]