COHERENT PHASE COMPENSATION METHOD BASED ON DIRECT IF SAMPLING IN WIDEBAND RADAR

被引：7
作者：
Lin, Qianqiang [1 ]
Chen, Zengping [1 ]
Zhang, Yue [1 ]
Lin, Jianzhi [1 ]
机构：
[1] Natl Univ Def Technol, Automat Target Recognit ATR Natl Def Sci & Techno, Changsha 410073, Hunan, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2013年 / 136卷
基金：
中国国家自然科学基金;
关键词：
ISAR; CONSTRUCTION; TARGETS; ENTROPY;
D O I：
10.2528/PIER12122203
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：
In order to eliminate the negative influence of the rotational phase component (RPC) of target prominent scattering centres on the performance of Doppler centroid tracking (DCT) method, a coherent phase compensation method is proposed. The coherence of echo pulses sampled directly in intermediate frequency (IF) is firstly analyzed and proved. Based on the coherence property, the proposed approach improves the translational phase component (TPC) estimation accuracy of DCT. Compared to the modified Doppler centroid tracking (MDCT) algorithm, the proposed method achieves better phase compensation performance with simpler operations. Both the theoretical analysis and experimental results based on the real TSAR data prove the effectiveness and efficiency of the presented strategy.
引用
收藏
页码：753 / 764
页数：12
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