火力与指挥控制
火力與指揮控製
화력여지휘공제
FIRE CONTROL & COMMAND CONTROL
2014年
7期
31-34
,共4页
时差%站址误差%最大似然%克拉美罗界
時差%站阯誤差%最大似然%剋拉美囉界
시차%참지오차%최대사연%극랍미라계
time difference%error of receiver positions%maximum likelihood%CRLB
提出了一种存在随机站址误差时的时差定位算法，该算法将站址误差等效为距离差的测量误差，分析了该等效误差的统计特性，并给出了一种迭代最大似然估计算法。仿真结果表明，存在站址误差的条件下，算法逼近了克拉美罗界，明显优于其他时差定位算法。
提齣瞭一種存在隨機站阯誤差時的時差定位算法，該算法將站阯誤差等效為距離差的測量誤差，分析瞭該等效誤差的統計特性，併給齣瞭一種迭代最大似然估計算法。倣真結果錶明，存在站阯誤差的條件下，算法逼近瞭剋拉美囉界，明顯優于其他時差定位算法。
제출료일충존재수궤참지오차시적시차정위산법，해산법장참지오차등효위거리차적측량오차，분석료해등효오차적통계특성，병급출료일충질대최대사연고계산법。방진결과표명，존재참지오차적조건하，산법핍근료극랍미라계，명현우우기타시차정위산법。
A new algorithm of source localization using TDOA with random erroneous receiver positions is presented. It can change the position errors into the range difference errors and the statistic characteristics of the errors are discussed and an iterative localization method using maximum likelihood estimation is proposed. As shown by the simulation results,it wins the advantage over other algorithms in location accuracy with random erroneous receiver positions,and can reach the CRLB.
