对噪声调频干扰源的站间到达时差测量

罗勇江; 汤建龙; 赵国庆; 斯海飞

doi:10.3724/SP.J.1146.2008.00264

对噪声调频干扰源的站间到达时差测量

doi: 10.3724/SP.J.1146.2008.00264

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出版历程
- 收稿日期: 2008-03-09
- 修回日期: 2008-10-27
- 刊出日期: 2009-05-19

Estimation of TDOA for Locating Noise-Frequency Modulation Jammer in Passive System

摘要

摘要: 该文针对无源系统中对噪声调频干扰源的到达时差测量，提出了对接收到的噪声调频干扰源信号进行增量调制编码，然后对增量调制编码序列进行抽取传输，利用抽取后序列采用相关时差法可以估计主辅站信号到达时差，并通过三次样条插值提高时差估计精度，给出了其时差估计表达式。通过仿真表明，该方法与直接利用噪声信号相关估计时差具有同等的效果，而该方法可以大大降低主辅站间的通信数据量。
- 到达时差测量;噪声调频干扰源;增量调制编码
Abstract: Location of noise-frequency modulation jammer with TDOA(Time Difference Of Arrival) in passive system is studied, a new method of cross-correlation using delta-modulation coding jointed decimation and interpolation is presented in this paper,and location accuracy of this method is discussed. Simulations show that the performance of this method is same as the method of cross-correlation using signal sample data. The most

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