基于PNFM-LFM复合调制的探测干扰共享波形设计

熊国淼; 李云鹏; 李鹏蛟; 陈超

doi:10.7527/S1000-6893.2021.25821

航空学报 >

2021 , Vol. 42 >Issue 8: 525821 - 525821

DOI: https://doi.org/10.7527/S1000-6893.2021.25821

论文

基于PNFM-LFM复合调制的探测干扰共享波形设计

熊国淼 ,
李云鹏 ,
李鹏蛟 ,
陈超

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1. 空军航空大学航空作战勤务学院, 长春 130000;
2. 航空工业沈阳飞机设计研究所, 沈阳 110034

收稿日期: 2021-04-15

修回日期: 2021-05-08

网络出版日期: 2021-05-21

基金资助

省部级项目

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Design and performance analysis of an integrated detection-jamming shared waveform based on PNFM-LFM composite modulation

XIONG Guomiao ,
LI Yunpeng ,
LI Pengjiao ,
CHEN Chao

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1. School of Aviation Operations and Services, Aviation University of Air Force, Changchun 130000, China;
2. AVIC Shenyang Aircraft Design and Research Institute, Shenyang 110034, China

Received date: 2021-04-15

Revised date: 2021-05-08

Online published: 2021-05-21

Supported by

Provincial or Ministry Level Project

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摘要

针对雷达-电子战一体化共享信号波形的设计需求，提出一种伪码噪声调频与线性调频复合调制的探测干扰共享波形。在伪码序列的伪随机性和规律性上，通过理论推导和仿真实验，分析并验证了该探测干扰共享波形具有良好的模糊函数以及线性可控的频谱特征，有效通带内干扰功率利用率平均可达38%；通过探测干扰共享信号的相关信号处理，本地接收机能够成功地对信噪比不低于-27 dB的回波信号进行检测，且改善因子可达30 dB。

关键词： 伪码噪声调频; 一体化; 信号样式; 模糊函数; 功率利用率

本文引用格式

熊国淼 , 李云鹏 , 李鹏蛟 , 陈超 . 基于PNFM-LFM复合调制的探测干扰共享波形设计[J]. 航空学报, 2021 , 42(8) : 525821 -525821 . DOI: 10.7527/S1000-6893.2021.25821

Abstract

To satisfy the design requirements of shared signal waveform in integrated radar-electronic warfare, a detection-jamming shared waveform was proposed based on pseudo-random-code noise frequency modulation and linear frequency modulation. In terms of pseudo-randomness and regularity of pseudorandom sequences, it is analyzed and verified through theoretical derivation and simulation experiments that the detection-jamming shared waveform has good ambiguity function and linear controllable spectrum characteristics, and the average utilization rate of interference power can reach 38% in the effective bandwidth. Through processing of the detection-jamming shared signal, the local receiver can successfully detect the echo signal with the SNR of no less than -27 dB, and the improvement factor of post-MTI can reach 30 dB.

Key words： pseudo-random-codes noise frequency modulation; integration; signal style; ambiguity function; power utilization rate

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