随机相位循环叠加梳状谱干扰实验设计  

Design of an Experimental Case of Comb Spectrum Jamming Based on Random Phase Cyclic Superposition

作　　者：张文旭[1] 张铭昊 蒋伊琳[1] 陈涛[1] ZHANG Wenxu;ZHANG Minghao;JIANG Yilin;CHEN Tao(School of Information and Communication Engineering,Key Laboratory of Advanced Marine Communication and Information Technology,Ministry of Industry and Information Technology,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学信息与通信工程学院,先进船舶通信与信息技术工业和信息化部重点实验室,哈尔滨150001

出　　处：《实验室研究与探索》2023年第4期5-9,49,共6页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(62071137);教育部高等学校电子信息类专业教学改革研究项目(2021-JG-27);黑龙江省自然科学基金项目(LH2020F020);哈尔滨工程大学本科教学改革研究项目(JG2021B0804)。

摘　　要：基于Zedboard开发板,以雷达梳状谱干扰波形合成设计为出发点,提出了一种基于随机相位多频点循环叠加的梳状谱干扰波形设计方法,使用单个DDS IP核生成完成叠加任务,并通过Zynq-7000系列FPGA对该方法进行编程设计与算法实现。同时使用MATLAB仿真与FPGA硬件实现对实验效果进行测试,结果表明,该实验能够成功生成宽带梳状谱干扰波形,干扰频率范围为0~600 MHz,有4、8、16三种干扰频点模式,同时其干扰频点误差不超过0.1%,由此验证了方法的有效性。实验中提出以m序列作为干扰信号的相位控制,改善时域叠加条件下梳状谱干扰信号峰均比。该方案可用于实际被动侦察干扰设备,为其提供一种遮盖式干扰方式。For the course of radar principle,we designed an experimental case related to radar jamming.This case is based on the Zedboard development board.Taking the synthesis design of radar comb spectrum jamming waveform as the starting point,it proposes a comb spectrum jamming waveform design method based on random phase multi frequency point cyclic superposition.A single DDS IP core is used to generate and complete the superposition task,and the method is programmed and implemented through Zynq-7000 series FPGA.The MATLAB simulation and FPGA are used to test the experimental effect.It shows that the experiment can successfully generate broadband comb spectrum jamming waveform,the jamming frequency range is 0~600 MHz,there are 4,8 and 16 jamming modes,and the jamming frequency error does not exceed 0.1%,which verifies the effectiveness of the method.In the experiment,m-sequence is used as the phase control of jamming signal to improve the PAPR of comb spectrum jamming signal under the condition of time-domain superposition.This scheme can be used for actual passive reconnaissance jamming equipment and provides a covering jamming mode.

关 键 词：随机相位 多频点循环叠加 Zedboard开发板 梳状谱干扰 

分 类 号：TN951[电子电信—信号与信息处理]