弱信号自适应检测技术研究

Research on Adaptive Weight Vector Detection Technique of Weak Signal

低信噪比条件下的微弱信号检测是一个重要的技术问题。文中提出在低信噪比条件下用自适应权向量法来提高微弱信号的检测概率,具有较宽的适用范围。文中结合水雷磁引信的要求,用该方法检测舰船磁场引起地磁场模值的变化。仿真和实船数据处理表明应用该方法效果显著。

The detection of the weak signal submerged in white noise is increasingly important. In this paper the Adaptive Weight Vector Method (AWVM) is applied to increase the detection probability. This method can be used in various technical areas effectively. The detection of geomagnetic variation caused by ship’s magnetic field is examined in detail. The simulation and real data processing shows this new method is promising.