摘要
为了提高T2 R系统距离和交叉定位精度,首先给出距离和交叉定位的显式方程解,通过引入目标多普量测,提出一种基于多普勒/距离和融合估计的联合定位算法。对联合定位技术的精度进行了分析和推导,给出具体的定位方程、定位解算方法和误差计算公式,同时获得目标的空间速度信息。最后从数字仿真和试验验证两个方面证明了该联合算法的定位性能优于距离和交叉定位,且克服了定位解模糊问题。
To improve location precision of sum of distance measurement for T2 R system,an analytic solution of sum of distance location system is given.Combining with Doppler measurement,ajoint algorithm based on selection fusion of Doppler and sum of distance is proposed.Then,the location and calculating formulas of the location system are given.And the errors of the location system are analyzed.Finally,simulation and experiment results show that this hybrid method can achieve better performance than the sum of distance location and can eliminate the location ambiguity.
出处
《雷达科学与技术》
北大核心
2015年第1期81-85,共5页
Radar Science and Technology
关键词
距离和交叉
多普勒频率
联合定位算法
精度分析
算法性能
sum of distance crossover
Doppler frequency
joint location algorithm
precision analysis
algorithm performance
