大气折射误差修正研究现状与展望

摘要:

雷达是测量目标位置和速度的常用手段之一.为了提高雷达的测量精度,需要对因大气折射效应而产生的雷达测量误差进行修正.首先简要给出了雷达系统中大气折射误差的问题描述及进行误差修正的思路.然后不仅详细阐述了目前常用的电波射线描迹法、近似修正法和新型修正法等电波折射误差修正技术在雷达定位中的研究和应用现状,而且也阐述了几种用于对雷达测速折射误差修正方法的研究和应用现状,同时,对各种方法的使用范围及其优缺点也进行了简单的分析.最后,给出了雷达系统大气折射误差修正技术在今后的研究方向.

Radar is one of common methods that measure the location and velocity of target and its measurement error needs to be corrected as a result of atmospheric refraction effect in order to improve the measurement accuracy of radar; To be- gin with, the problem description and corrected idea of atmospheric refraction error in radar system are given briefly in the pa- per. Next,the paper not only elahorates in detail the researches and application status of radio-wave refraction error correction technology in localization of radar which includes the ray tracing method, approximate correction method, new-type correction method and so on, but also elaborates the researches and application status of several refraction error correction methods on ra- dar speed measurement. At the same time, the range of application, advantages and disadvantages of various refraction error correction methods are also analyzed briefly. Finally, the paper points out the future research direction of the atmospheric re- fraction error correction technology in radar system.

作者:

张瑜 甘利萍

机构地区:

betway官方app 电子与电气工程学院 betway官方app 河南省高等学校电磁波特征信息探测重点学科开放实验室

出处:

《betway官方app 学报：自然科学版》 CAS 北大核心 2016年第4期45-52,共8页

基金:

国家自然科学基金(61077037)

关键词:

雷达 折射误差 修正 定位 测速

radarl refraction error correction localization speed measurement

分类号:

TN011 [电子电信—物理电子学]

大气折射误差修正研究现状与展望.pdf