改进的相控阵雷达信号检测方法

针对传统雷达信号检测方法对相控阵雷达信号检测概率较低的问题，提出了一种结合小波降噪和极值序列法的信号检测方法。该方法采用小波阈值降噪法对雷达信号进行预处理，以提高侦收信号的信噪比，利用极值序列法在高信噪比下检测精度较高的优势，完成对信号的准确检测和参数的精确估计。仿真结果表明，与传统检测方法相比，该方法在低信噪比下对相控阵雷达信号的检测概率平均提高21.8%。

Improved Detection Method for Phased-Array Radar Signal

Aiming at a lower detective probability of the existing radar signal detection method to phased array radar signal, this paper presents a detection method based on wavelet de noising and extremum sequence algorithm. The method wavelet threshold de noising algorithm to pretreat the received signal at first, which can ameliorate the SNR（Signal Noise Ratio） of signal. Then it uses extremum sequence algorithm to detect the radar signal accurately and estimate its parameters accurately, which has a higher detection precision in a higher SNR. Simulation results show that compared with the existing method, the proposed one has 21.8% improvement in detective probability to phased array radar signal in a low SNR. 