Phase Synchronization for Coherent MIMO Radar: Algorithms and Their Analysis

被引:90
作者
Yang, Yang [1 ]
Blum, Rick S. [1 ]
机构
[1] Lehigh Univ, Dept Elect & Comp Engn, Bethlehem, PA 18015 USA
关键词
Coherent processing; multiple-input multiple-output (MIMO) radar; phase synchronization; TARGET LOCALIZATION; CONSENSUS; FREQUENCY; NOISE;
D O I
10.1109/TSP.2011.2162509
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Multiple-input multiple-output (MIMO) radar can achieve improved localization performance by employing a coherent processing approach with proper antenna positioning. Coherent processing, however, entails the challenge of ensuring phase coherence of the carrier signals from different distributed radar elements. In this work, we aim to address such a challenge by providing a systematic treatment of the phase synchronization problem in coherent MIMO radar systems. We propose and study three different approaches for reaching a common notion of phase in coherent MIMO radar, namely, the master-slave closed-loop algorithm, the round-trip algorithm and the broadcast consensus based algorithm. These algorithms range from centralized to distributed types, and include both noniterative and iterative approaches. They do not require a priori establishment of the time synchronization, and thus are all time asynchronous in nature. Under a similar analytical framework, we mathematically characterize each of these algorithms, and further derive and study the statistical properties of a few relevant figures of merit including the resulting phase synchronization error. Simulation results are presented to validate our theoretical analysis.
引用
收藏
页码:5538 / 5557
页数:20
相关论文
共 45 条
[1]   MIMO Radar Detection and Adaptive Design Under a Phase Synchronization Mismatch [J].
Akcakaya, Murat ;
Nehorai, Arye .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2010, 58 (10) :4994-5005
[2]  
[Anonymous], 2007, PROC 46 IEEE C DECIS, DOI DOI 10.1109/CDC.2007.4434671
[3]  
Attia Elsayed Hesham, 1985, PHASE SYNCHRONIZING
[4]   Broadcast Gossip Algorithms for Consensus [J].
Aysal, Tuncer Can ;
Yildiz, Mehmet Ercan ;
Sarwate, Anand D. ;
Scaglione, Anna .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2009, 57 (07) :2748-2761
[5]  
Bertsekas D. P., 1992, Data Networks, V2nd
[6]   Randomized gossip algorithms [J].
Boyd, Stephen ;
Ghosh, Arpita ;
Prabhakar, Balaji ;
Shah, Devavrat .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (06) :2508-2530
[7]   Time-Slotted Round-Trip Carrier Synchronization for Distributed Beamforming [J].
Brown, D. Richard, III ;
Poor, H. Vincent .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2008, 56 (11) :5630-5643
[8]  
Brown DR, 2005, 2005 IEEE 6TH WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, P260
[9]  
Dantzig G. B., 1967, Theory of graphs-international symposium, P77
[10]  
Dasdan A., 2004, ACM T DESIGN AUTOM E, V9