电子学报 ›› 2015, Vol. 43 ›› Issue (3): 505-511.DOI: 10.3969/j.issn.0372-2112.2015.03.014

• 学术论文 • 上一篇    下一篇

基于模糊函数的LM型压缩接收机频率检测性能分析

黄鹏1, 刘全胜1,2, 徐保国2   

  1. 1. 无锡职业技术学院物联网技术学院, 江苏无锡 214122;
    2. 江南大学物联网工程学院, 江苏无锡 214122
  • 收稿日期:2012-12-22 修回日期:2013-04-01 出版日期:2015-03-25
    • 作者简介:
    • 黄鹏 男,1982年9月出生,江苏泰州人,博士.研究方向为雷达电子对抗,雷达信号处理. E-mail:chongpeng@126.com;刘全胜 男,1969年4月出生,湖北宜昌人,博士研究生,研究方向为多智能体协同控制,信号处理.徐保国 男,1950年1月出生,江苏淮阴人,教授、博士生导师,主要研究方向为信号处理和无线通信.

Frequency Detection by LM Compressive Receiver using Ambiguity Function

HUANG Chong-peng1, LIU Quan-sheng1,2, XU Bao-guo2   

  1. 1. School of Internet of Things Technology, Wuxi Institute of Technology, Wuxi Jiangsu 214122, China;
    2. School of Internet of Things Enigneering, Jiangnan universty, Wuxi Jiangsu 214122, China
  • Received:2012-12-22 Revised:2013-04-01 Online:2015-03-25 Published:2015-03-25

摘要:

以压缩接收机工作机理线性调频傅氏变换为基础,对当前常用的"长相乘—短卷积"压缩接收机模型特性进行了细致研究.参照模糊函数对雷达信号分析的方法,定义了压缩接收机输出函数,该函数描述了当与无损测频输出相比时,由雷达信号载频和实际脉冲展宽延迟线滤波器置空率引起的输出波形的变化.通过该函数可以对压缩接收机的频率分辨力、截获概率、到达时间等性能参数做出解析性分析.

关键词: 频率检测, 压缩接收机, 线性调频, 模糊函数

Abstract:

Using the chirp Fourier transform which is the working mechanism of the compressive receiver, the most important construction "long-multiplication, short-convolution" is analyzed in edge frequency and non-complete intercept.By ambiguity function, the output waveform of this receiver is set up in this situation.The parameters of output waveform are discussed, which are the output pulse-width, output peak time delay, and output peak value loss.Then the performance of frequency detection by these parameters is deduced, including frequency coming time, frequency resolution and intercept probability.

Key words: frequency detection, compressive receiver, chirp, ambiguity function

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