Targets location for colocatted MIMO radar and sonar in multipath environment: the conjugate gradient method
Targets location for colocatted MIMO radar and sonar in multipath environment: the conjugate gradient method
- Author(s): Hongpeng Li ; Xiang Pan ; Zheng Zheng
- DOI: 10.1049/cp.2015.1040
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- Author(s): Hongpeng Li ; Xiang Pan ; Zheng Zheng Source: IET International Radar Conference 2015, 2015 page ()
- Conference: IET International Radar Conference 2015
- DOI: 10.1049/cp.2015.1040
- ISBN: 978-1-78561-038-7
- Location: Hangzhou, China
- Conference date: 14-16 Oct. 2015
- Format: PDF
The Conjugate Gradient (CG) method, an advanced algorithm belonging to the Krylov subspace family, is recently proposed for array signal processing and shows superior performance in correlated, low signal-to-noise ratio (SNR) and limited sample data environment. Motivated by the above, in this paper, the CG for high resolution direction of arrival in collocated MIMO radar and sonar is investigated. And, a transmit beamspace (BS) CG is developed. The proposed methods for MIMO radar and sonar are compared with the classic MUSIC method and stateof - art transmit beamspace MUSIC for MIMO radar. Numerical results show the CG provides a better performance even without transmit beamspace preprocessing.
Inspec keywords: sonar signal processing; signal sampling; signal resolution; correlation methods; MIMO radar; conjugate gradient methods; array signal processing
Subjects: Interpolation and function approximation (numerical analysis); Sonar and acoustic radar; Linear algebra (numerical analysis); Signal processing and detection
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