一种干涉仪测向中圆锥效应的消除方法  

A Method of Eliminating a Interference Instrument Test Towards the Mid⁃Cone Effect

作　　者：盛涛 SHENG Tao(Science and Technology on Electronic Information Control Laboratory,Chengdu,Sichuan 610036,China)

机构地区：[1]电子信息控制重点实验室,四川成都610036

出　　处：《信息记录材料》2024年第7期1-3,6,共4页Information Recording Materials

摘　　要：现有干涉仪测向体制在入射信号的俯仰角度较小时具备较高的测向精度,能够满足电子侦察设备的使用需求,但在入射信号的俯仰角度较大时或载机在机动期间,会引入圆锥效应,造成干涉仪测向精度急剧下降,严重影响电子侦察设备的作战效能的发挥。本文通过采用水平-俯仰二维测向基线设计,实现对入射信号的俯仰角的感知,并根据该信号的入射俯仰角计算出圆锥效应带来的误差,通过抵消圆锥效应误差的方式提升干涉仪在俯仰空域内的测向精度,提升电子侦察设备的作战效能。The existing interference instrument testing the pitch angle of the system in the incident signal has a high directional accuracy and can meet the needs of the use of electronic reconnaissance equipment.It will introduce the cone effect,causing the interference instrument to test the sharp decline in accuracy,which seriously affects the combat effectiveness of electronic reconnaissance equipment.This article uses a horizontal elevation two⁃dimensional direction finding baseline design to achieve the perception of the elevation angle of the incident signal,and calculates the error caused by the cone effect based on the incident elevation angle of the signal.By eliminating the cone effect error,the direction finding accuracy of the interferometer in the elevation airspace is improved,and the combat effectiveness of electronic reconnaissance equipment is enhanced.

关 键 词：干涉仪 圆锥效应 测向精度 

分 类 号：TN971.1[电子电信—信号与信息处理]