干扰探测一体化信号波形设计与性能仿真  

Design and Performance Simulation for the Detection and Jamming Integrated Signal Waveform

作　　者：李其虎[1] 王颖[1] 商开拴 LI Qihu;WANG Ying;SHANG Kaishuan(China Academy of Electronics and Information Technology,Beijing 100041,China)

机构地区：[1]中国电子科学研究院,北京100041

出　　处：《探测与控制学报》2020年第1期39-43,共5页Journal of Detection & Control

摘　　要：针对探测信号易被截获发现且功能单一,而传统干扰信号对目标的距离分辨能力和速度分辨能力不足,提出了一种基于双载频伪随机二相编码信号的干扰探测一体化信号波形。构建了双载频伪随机二相编码信号的信号模型,推导了其信号模糊函数与频谱函数数学表达式;为分析信号的探测能力和干扰能力,对信号的模糊函数和频率特性进行了仿真。实验仿真结果表明,双载频伪随机二相编码信号的模糊图在时延轴和多普勒频率轴上都具有较好的距离和速度分辨能力,且信号频谱特征图呈现明显的噪声特性,可为干扰探测一体化共享信号波形设计提供理论参考。Aiming at the problem that the detection signal was easy to be jam and single function, while the distance resolution ability and speed resolution ability of the traditional interference signal was insufficient to the target, the detection and jamming integrated signal waveform based on the dual carrier frequency pseudo-random two-phase coding was proposed. The signal model of dual carrier frequency pseudo-random two-phase coding was constructed, and the mathematical function expressions of the signal ambiguity with the spectrum was deduces. In order to analyze signal ability to detection and jamming, the fuzzy function and frequency characteristics of the signal were simulated. Experimental results showed that the signal ambiguity map of the dual carrier frequency pseudo-random two-phase coding had better ability of distance and velocity on both the time-delay axis and the Doppler frequency axis, and the spectrum characteristic map of the signal showed obvious noise characteristics, which could provide a theoretical reference for the design to the detection and jamming integrated signal waveform.

关 键 词：信号模型 一体化 频谱特性 模糊函数 双载频伪随机二相编码 

分 类 号：TP911[自动化与计算机技术]