[1]李龙[],鞠阳[],燕雪峰[]. 一种多普勒频移优化搜索的目标运动分析算法[J].计算机技术与发展,2015,25(07):45-48.
　LI Long[],JU Yang[],YAN Xue-feng[]. A Target Motion Analysis Algorithm Based on Doppler Frequency Shift Optimization Search[J].,2015,25(07):45-48.
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 一种多普勒频移优化搜索的目标运动分析算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年07期
页码:
45-48
栏目:
智能、算法、系统工程
出版日期:
2015-07-10

文章信息/Info

Title:
 A Target Motion Analysis Algorithm Based on Doppler Frequency Shift Optimization Search
文章编号:
1673-629X（2015)07-0045-04
作者:
 李龙[1]; 鞠阳[2];  燕雪峰[1]
 1.南京航空航天大学 计算机科学与技术学院；2.中国船舶工业系统工程研究院
Author(s):
 LI Long[1] ; JU Yang[2] ; YAN Xue-feng[1]
关键词:
 ; 目标运动分析; 多普勒频偏; 多峰值; 局部最优
Keywords:
 ; TMA; Doppler frequency offset; multi-peak; local optimization
分类号:
TP391.9
文献标志码:
A
摘要:
 在多普勒频移空间里，由于搜索精度的不确定性，导致算法结果收敛缓慢或者计算效率降低。提出了一种改进的方位-线谱频移的目标运动分析算法，将滤波方程从非线性领域映射为形式简洁的线性领域，在对多普勒频率匹配时，将对搜索元素的目标函数最佳估计问题转化成一个多峰值非线性的优化问题，给出了一种新的优化搜索匹配算法。实验结果表明，此算法能够实现对目标的无源跟踪定位，降低了算法的时空复杂度，提高了计算效率和收敛精度，并减少了跟踪定位所用时间。
Abstract:
 To solve the problem that the algorithm’s slow convergence,or the lower computational efficiency caused by the uncertainty of the search accuracy in Doppler frequency shift space,an improved target motion analysis algorithm of bearing-line Doppler frequency shift is proposed. The filter equation is transformed from the nonlinear field to the simple linear form field. When the Doppler frequency is matched,a new optimized search matching algorithm is put forward,that the best estimation problem of the search element’ s objective function is transformed into a multi-peak and nonlinear optimization problem. Experimental results show that the algorithm can achieve the goal of passive tracking,decreasing the time and space complexity of the algorithm,improving the computational efficiency and con-vergence precision,and reducing the tracking time.

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更新日期/Last Update: 2015-09-06