CAJ | 학술논문

电子战系统通常使用宽瞬时带宽，在其中可能存在直扩信号，频谱监测方不知道是否存在直扩信号、信号数目、所处频带位置等信息。针对这种情况提出了一种宽带内多直扩信号的快速检测方法，该方法应用波动相关法，检测策略上利用分段滤波分离各个直扩信号并且提高信噪比，然后分析了该方法的检测性能。通过仿真验证了该方法的有效性和实用性。
전자전계통통상사용관순시대관，재기중가능존재직확신호，빈보감측방불지도시부존재직확신호、신호수목、소처빈대위치등신식。침대저충정황제출료일충관대내다직확신호적쾌속검측방법，해방법응용파동상관법，검측책략상이용분단려파분리각개직확신호병차제고신조비，연후분석료해방법적검측성능。통과방진험증료해방법적유효성화실용성。
Electronic warfare system usually uses a wide instantaneous bandwidth, in which may exist DSSS signals, in non-cooperative context such as spectrum surveillance, whether there exists DSSS signal, the number of signals and their position in frequency domain are all unknown. A new multi DSSS signals detection method aimed at this situation is presented. This method uses fluctuations of correlation estimators, with the help of band-pass filters, makes every DSSS signal isolate in frequency domain, and enhances signal to noise ratio. Then, an analysis of performance of this method is presented. The computer simulation demonstrates the effectiveness and the practicality of this method.