罗兰C接收机中窄带干扰的抑制技术

Narrow Band Interference Suppression Technique in Loran-C Receiver

针对目前的罗兰C接收机在抑制窄带干扰方面的缺陷,将基于LMS算法(最小均方准则)的自适应陷波器应用于罗兰C窄带干扰的抑制,通过仿真,将其与固定频率点的陷波器进行了比较,自适应陷波具有较好的抑制窄带干扰能力。

This paper uses the adaptive notch filter based on LMS algorithm to suppress the NBI which aims at the limitation of current Loran - C receivers and contrasts this technique with an notch filter which has fixed frequency. It is shown by the results of simulation that the adaptive notch filter has a perfect effect on NBI.