Please wait a minute...
浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (6): 1052-1056    DOI: 10.3785/j.issn.1008-973X.2011.06.015
    
Tracking algorithm for multiple spatial targets based on
direction lock loop
WANG An-ding1,3, QIU Yu-yang2, YU Yan-ping3, LI Shi-ju1
1. Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China；
2. School of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou 310018, China；
3. School of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
Download:   PDF(0KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

A tracking algorithm for array antenna based on the direction lock loop was proposed in order to overcome the drawbacks of large computational cost and poor real-time performance of the traditional moving multiple targets’ tracking. With the orthogonal beam-space matrix, the initiating state of the direction lock loop was estimated by the coarse multiple targets’ range. After the coarse estimation of direction, the fast moving targets were tracked adaptively in real-time with the direction lock loop which was based on the spatial correlator. This algorithm not only guarantees the loop to reach the locked state under any condition, but also improves the tracking performance. Simulation shows that the proposed algorithm can reach both high accuracy and realtime performance when tracking multiple spatial targets. Compared with the PASTd algorithm, this algorithm has lower computational complexity with similar performance.

Published: 14 July 2011
CLC:  TN 119.3  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:

WANG An-ding, QIU Yu-yang, YU Yan-ping, LI Shi-ju. Tracking algorithm for multiple spatial targets based on
direction lock loop. J4, 2011, 45(6): 1052-1056.

URL:

https://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2011.06.015     OR     https://www.zjujournals.com/eng/Y2011/V45/I6/1052


基于锁角环路的空间多目标跟踪算法

为了解决传统的移动多目标跟踪计算量大、实时性差的问题,针对阵列天线提出一种基于锁角环路的多目标跟踪算法.该算法利用正交波束空间矩阵,对多个目标的分布范围进行初始定位,并以此作为锁角环路的初始状态；在得到方位的粗估计后,采用基于空间相关器的锁角环路,对快速移动目标源进行自适应的实时跟踪,该算法既保证了环路在任意初始状态下都能进入锁定状态,又提高了环路的跟踪性能.仿真表明：该算法在跟踪多个空间目标时不但具有较高的精度,而且有很好的实时性.同基于PASTd的跟踪算法相比,在性能相近的条件下,有效地降低了计算复杂度.

［1］ YANG B. Projection approximation subspace tracking ［J］. IEEE Transactions on Signal Processing, 1995, 43（1）: 95-107.
［2］ JAVIER S A, SYLVIE M. An Efcient PASTdalgorithm implementation for multiple direction of arrival tracking ［J］. IEEE Transactions on Signal Processing, 1999, 47（8）: 2321-2324.

［3］ CHAN S C, ZHANG Z G, ZHOU Y. A new adaptive Kalman filterbased subspace tracking algorithm and Its application to DOA estimation ［C］∥ IEEE International Symposium on Circuits and Systems. Island of Kos, Greece: IEEE, 2006: 129-132.
［4］ MOCHIDA E J,IIGUNI Y J.Adaptive DOA estimation using a database of eigenvectors ［J］. Electronics and Communications in Japan, 2007, 90（3）: 48-56.
［5］ SEO D Y,MIN S Y,LEE K B,et al.Coherent DiLL for direction of arrival estimation ［C］ ∥ ICSP’02 Proceedings. Beijing: IEEE,2002: 334-337.
［6］ DIAB WALID G, ELKAMCHOUCHI HASSAN M. DOA tracking in multipath environment based on the direction lock loop ［C］ ∥ IEEE International Conference on Signal Processing and Communications. Dubai: IEEE, 2007: 1099-1102.
［7］ MIN S Y, SEO D Y,LEE K B, et al. Directionofarrival tracking scheme for DS/CDMA systems: direction lock loop ［J］. IEEE Transactions on Wireless Communications, 2004, 3（1）: 191-202.
［8］ HARRY L V T,最优阵列处理技术［M］.汤俊,译.北京：清华大学出版社,2008.
No related articles found!