CAJ | 학술논문

本文将时域相关检测法,循环谱检测法,倒谱检测法和高阶累积量检测法四种方法应用于直接序列扩频信号（DSSS）的盲检测,给出了具体的实现方法,并通过仿真实验进行验证比较,结果表明,时域相关法和循环谱法并不适用于低信噪比情况下信号的盲检测,相对于高阶累积量法,倒谱法在实时性方面有较大优势,有较好的发展前景。
본문장시역상관검측법,순배보검측법,도보검측법화고계루적량검측법사충방법응용우직접서렬확빈신호（DSSS）적맹검측,급출료구체적실현방법,병통과방진실험진행험증비교,결과표명,시역상관법화순배보법병불괄용우저신조비정황하신호적맹검측,상대우고계루적량법,도보법재실시성방면유교대우세,유교호적발전전경。
In this paper,time domain correlation detection method,cyclic spectral detection method,cepstrum detection method and high-order statistics detection method are introduced to detect DSSS signal.Simulation shows that the time domain correlation and cyclic spectral cannot detect DSSS at low SNR.Contrast with high-order statistics,cepstrum spent less time,is more promising.