大地方位角和圆概率误差的精确算法  

Precision Algorithm for Geodetic Azimuth and Circular Error Probability

作　　者：王存良[1] WANG Cun-liang(The 27th Research Institute of China Electronics Technology Group Corporation, Zhengzhou 450047, Chin)

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047

出　　处：《电光系统》2018年第1期6-11,共6页Electronic and Electro-optical Systems

摘　　要：文章给出了大地方位角和圆概率误差的精确算法，以便在工程中正确应用。大地方位角的精确算法是对《国军标GJB6304．2008中国大地测量系统》中的大地方位角算法的补充完善，使之成为可实现可计算机编程的算法，笔者开发了这一C”算法程序；结合实例将该程序运行结果与国军标中的结果进行了比对，验证了笔者开发的算法程序的精确性，程序与大地方位角简便算法计算结果作了比较，指出了简便算法的适用范围。分析了《GJB6090-2007机载雷达对抗侦察设备定型试验规程》中方位角算法的误差原因，通过与本文的大地方位角计算结果比较，表明《GJB6090-2007））中方位角算法没有适用性。本文还给出了任意百分比的圆概率误差精确计算方法，并解决了计算难题，用于评估导弹落点精度和对地面辐射源定位精度；并论述了有关国军标中的圆概率误差计算公式的不准确。This paper gives a precision algorithm for geodetic azimuth and circular error probability to apply cor- rectly in engineering. This paper reinforces the geodetic azimuth algorithm in GJB 6304-2008 China geodetic system to make it becomes a programmable algorithm and develops the C ^＋＋ algorithm programs, makes the com- parison of program results with the result for GJB by using an example to validates the correctness of the algo- rithm program and with the result of the simplified algorithm for geodetic azimuth, and gives the scope of applica- bility of the simplified algorithm. The error reasons of azimuth algorithm in Approval test regulation airborne ra- dar countermeasure reconnaissance equipment （ GJB 6090-2007） are analyzed and it shows that there is no usa- bility for the azimuth algorithm in GJB 6090-2007 by comparing with the result of azimuth algorithm in this pa- per. Meanwhile this paper gives a precision algorithm for circular error probability to evaluate accuracy of mis- sile fall points and location accuracy of radiation source on the earth, and deals with the inaccuracy of formula for circular error probability in GJB.

关 键 词：大地方位角 贝塞尔球 韦森特公式 球面三角 圆概率误差 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]