一种L形二维短波自适应阵及其性能研究

An L-shaped Two-dimensional HF Adaptive Array And Its Performance Study

随着城市的扩展,一些岸台、边防台站等短波接收台站空间与电磁环境的恶化,信号接收质量受到了严重的影响,为了提高短波信号的接收效果,本文从影响短波信号接收的主要因素出发,结合短波信号多径传播的特点,提出一种抑制多径干扰,降低噪声接收的L形二维自适应接收阵。经分析表明,L形接收阵通过自适应信号处理有效抑制了干扰信号提高了信噪比且满足场地有效利用的条件,阵列部署简便,可以有效提升接收效果。

With the expansion of the city,the space and electromagnetic environment of some HF receiving stations such as shore stations and border stations deteriorate,and the signal receiving quality is seriously affected.In order to improve the receiving effect of HF signal,this paper proposes an L-shaped two-dimensional adaptive receiving array which can suppress multipath interference and reduce noise,starting from the main factors that affect the receiving effect of HF signal and combining with the characteristics of multipath propagation of shortwave signal.The analysis shows that the L-shaped receiving array can effectively suppress the interference signal and improve the signal-to-noise ratio through adaptive signal processing and meet the conditions of effective utilization of the site.