电讯技术2017，Vol.57Issue(4)：418-424,7.DOI:10.3969/j.issn.1001-893x.2017.04.009
一种有效的雷达信号快速识别方法
An Effective Method for Fast Recognizing Radar Signals
杨建 1周涛 1何梓昂1
作者信息
- 1. 电子信息控制重点实验室,成都 610036
- 折叠
摘要
Abstract
Aiming at the problem of low success rate of radar signal detection and recognition,this paper proposes a new algorithm for radar signal recognition based on instantaneous frequency feature extraction.Firstly,the algorithm uses short time Fourier transform(STFT) to calculate every part of the signal's instantaneous frequency characteristic.Secondly,it calculates the once and twice normalized instantaneous frequency characteristic value.Finally,it uses hierarchical decision-making method to conduct radar signal classification.Simulation results show that the proposed method can effectively identify all kinds of radar signal.The recognition success rate is more than 90% when the signal-to-noise ratio(SNR) is higher than-3 dB.关键词
雷达信号识别/瞬时频率/特征提取/短时傅里叶变换/脉内调制Key words
radar signal recognition/instantaneous frequency/feature extraction/short time Fourier transform/intra-pulse modulation分类
信息技术与安全科学引用本文复制引用
杨建,周涛,何梓昂..一种有效的雷达信号快速识别方法[J].电讯技术,2017,57(4):418-424,7.
