摘要雷达信号侦察识别和提取技术属于雷达复合信号电子侦察技术范畴，基本任务是用无线电电子侦察设备对无线电信号进行搜索、截获、分析。从电子战的角度来说，雷达复合信号侦察识别属于电子战支援范畴。在信号干扰中能够获取更多的复合信息，无疑相对于盲目干扰能够获得更高的效率。64890

本文基于模糊函数对伪码调相与线性调频复合探测信号参数提取方法进行研究。本文主要工作分为四部分：首先对国内外研究现状的分析。然后对伪码调相与线性调频复合探测系统进行了细致的描述。再对模糊函数的原理和性质进行了全面的介绍。最后基于模糊函数对伪码调相与线性调频复合探测信号进行参数提取。本文完整的给出了基于模糊函数对伪码调相与线性调频复合探测信号进行参数提取的过程，并通过matlab进行仿真。

毕业论文关键字    伪码调相与线性调频复合 模糊函数 参数提取 

 Abstract    Modern radar systems become more complicated, it is difficult to use simple intuitive analysis method for processing, therefore, radar system simulation increasingly get promotion. Radar system simulation method of economic, flexible and convenient, in the radar research field and engineering technology has been widely used.

     This paper based on linear FM pulse radar, of radar simulation and processing. This paper mainly work is pided into three parts: linear FM continuous wave radar system is introduced, the radar echo simulation, the matlab software is introduced. First of all, introduced the LFMCW principle and method of the radar system is given, and the system frame. Then from radar target echo signal on the target simulation discussed the simulation method and process. After the software matlab simulation signal are introduced, and commissioning, finally, using the software simulation out the whole target echo simulation of the wave image, to the simulation results.

     This paper presents a complete LFM radar system simulation and the treatment process, simulation of the radar signals, after radar signal processing and radar data processing, eventually form the correct waveform and display.

           Key word:   LFMCW   radar target echo simulation

毕业论文关键词  信号发生器  AT89C51单片机  D/A转换

毕业设计说明书（论文）外文摘要

Abstract

    The technology of Radar signal reconnaissance identification and extraction is  the radar composite signal electronic surveillance technology areas. The basic task is using the radio- electronic reconnaissance equipment to radio signal search intercepted and analysis .From the point of view of the electronic warfare, the composite radar signal reconnaissance recognition belongs to the areas of electronic warfare support. Getting more complex information in the signal-to-interference, no doubt for blind interference can achieve higher efficiency .

    The paper based on the ambiguity function of pseudorandom phase modulation and linear frequency modulation composite the detection signal parameter extraction method study. In this paper work is pided into four parts: at first , I analyzed of the research status. And then I described pseudorandom phase modulation and linear modulation frequency composite detection system meticulously. And I introduced the ambiguity function comprehensively. Finally I extracted parameters of pseudorandom phase modulation and linear frequency modulation combined detecting signals based on the ambiguity function. The paper gave the process of extracting Parameters of pseudorandom phase modulation and linear frequency modulation combined detecting signals completely and simulated by matlab.