摘要
一般的航天跟踪测量都包含伪码或侧音测距,而测距的校零问题一直是困扰系统可靠性的因素。文章通过对航天测控发展历程的回顾,深入探讨了通过多台没有测距功能的测速雷达进行定轨的多普勒跟踪测轨技术。成功地利用Levenberg Marquardt方法对非线性测量方程组进行求解,提高了定轨精度。并且通过对多普勒测速雷达的布站优化,证明六个以上测元可以对航天器定轨。
The reliablity of calibration for range measurement is low in general in space tracking and measurement. After reviewing the history of space TT＆C,ifs been found that by measuring Doppler signals （range rate） at multiple points on the earth, it is possible to determine the position, velocity of a moving target. The Levenberg Marquardt method is applied successfully to solve the nonlinear equations. The genetic algorithm is employed for determining radar station sites. An optimized method is proposed in this paper. The simulation results validate the effectiveness of the proposed approach.
出处
《航天器工程》
2007年第3期82-89,共8页
Spacecraft Engineering
关键词
测量系统
定轨
遗传算法
测速雷达
measurement system
trajectory uring radars 1 determination
genetic algorithm
range rate measuring radars
作者简介
韩秀国（1968-），男，硕士，高级工程师，从事航天测控总体工作。
