一种去电离层非线性相位污染的周期求和法  

A Method of Cycle Summation for Eliminating the Ionospheric Nonlinear Phase Disturbance

作　　者：谢谠[1] 陈辉[2] 

机构地区：[1]空军雷达学院研究生管理大队,武汉430019 [2]空军雷达学院空天基预警监视装备系,武汉430019

出　　处：《空军雷达学院学报》2009年第1期36-38,45,共4页Journal of Air Force Radar Academy

摘　　要：为有效地抑制电离层扰动引起的OTHR回波信号多普勒谱发生展宽的问题,分析了电离层扰动引起相位污染的机理,然后基于正弦型相位扰动提出了周期求和法去非线性相位污染.仿真实验结果表明,该方法简单有效,且具有稳健的去污染效果.For suppressing effectively the phenomenon that the Doppler spectrum of OTHR echo spreads resulted from the ionospheric perturbation, the principles of phase disturbance due to the ionosphere disorder were analyzed. Then a cycle summation method based on the sinusoidal phase disturbance was given to eliminate the nonlinear phase disturbance. Simulation results show that the method is of simpleness, effectiveness and robust performance on eliminating the phase disturbance.

关 键 词：天波超视距雷达 电离层污染 相位污染校正 

分 类 号：TN958.93[电子电信—信号与信息处理]