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Title:
SPARSE-BASED SPACE-TIME ADAPTIVE PROCESSING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/204976
Kind Code:
A1
Abstract:
A sparse-based space-time adaptive processing method, belonging to the technical field of signal processing, and comprising: constructing a virtual space-time snapshot according to a space-time snapshot covariance matrix of a coprime array-coprime pulse (S101); constructing a sparse-based space-time adaptive processing filter according to the virtual space-time snapshot (S102); and performing clutter signal estimation according to the space-time adaptive processing filter to obtain a detection signal (S103). The method provides a sparse-based space-time adaptive processing method of coprime array and coprime pulse recurrence interval. The O(MN) degree of freedom can be achieved using only M+N×1 physical sensors due to the fact that the coprime array canprovide the capability of larger array aperture; by means of said advantages, the Direction of Arrival (DOA) estimation precision is remarkably enhanced, and the coprime array is applied to the field of space-time adaptive processing (STAP), such that the number of snapshots is greatly reduced, and the system cost is reduced.

Inventors:
YANG ZHAOCHENG (CN)
WANG XIAOYE (CN)
CHENG YIGE (CN)
HE KAIXUAN (CN)
HUANG JIANJUN (CN)
Application Number:
PCT/CN2018/084200
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
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Assignee:
UNIV SHENZHEN (CN)
International Classes:
G01S7/41
Foreign References:
CN106338723A2017-01-18
CN105929371A2016-09-07
CN105182313A2015-12-23
CN105629206A2016-06-01
US8179300B22012-05-15
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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