舰船电子工程
艦船電子工程
함선전자공정
SHIP ELECTRONIC ENGINEERING
2011年
12期
108-110
,共3页
新体制雷达%韦尔奇功率谱%特征提取%识别
新體製雷達%韋爾奇功率譜%特徵提取%識彆
신체제뢰체%위이기공솔보%특정제취%식별
new characteristic radar%Welch power spectrum%feature extraction%recognition
对特殊体制雷达信号脉内特征的提取是电子对抗的重要研究课题。论文利用韦尔奇功率谱原理来提取信号识别特征参数,并根据提取出的特征参数设计信号识别模型。首先从多种信号中检测识别线性调频信号、相位编码信号、频率编码信,然后分析特征参数的适用范围和信号环境。最后通过仿真分析来验证特征提取算法和识别方法在雷达辐射源信号识别中的可行性。
對特殊體製雷達信號脈內特徵的提取是電子對抗的重要研究課題。論文利用韋爾奇功率譜原理來提取信號識彆特徵參數,併根據提取齣的特徵參數設計信號識彆模型。首先從多種信號中檢測識彆線性調頻信號、相位編碼信號、頻率編碼信,然後分析特徵參數的適用範圍和信號環境。最後通過倣真分析來驗證特徵提取算法和識彆方法在雷達輻射源信號識彆中的可行性。
대특수체제뢰체신호맥내특정적제취시전자대항적중요연구과제。논문이용위이기공솔보원리래제취신호식별특정삼수,병근거제취출적특정삼수설계신호식별모형。수선종다충신호중검측식별선성조빈신호、상위편마신호、빈솔편마신,연후분석특정삼수적괄용범위화신호배경。최후통과방진분석래험증특정제취산법화식별방법재뢰체복사원신호식별중적가행성。
The feature extraction of new characteristic radar emitter signal is an important problem in ECM. Firstly, several feature parameters for signal recognition is extracted with Welch power spectrum, then a signal recognition model is designed by the characteristic of the feature parameters. Liner frequency modulating signal, phase coded and frequency coded signal are detected and recognized from all kinds of signals. The suitable range and signal's condition of the feature parameters are analyzed. Simulation proves the feasibility of the algorithm and the recognition method.