Title:
SPARSE OPTIMIZATION METHOD BASED ON CROSS-SHAPED THREE-DIMENSIONAL IMAGING SONAR ARRAY
Document Type and Number:
WIPO Patent Application WO/2019/237621
Kind Code:
A1
Abstract:
Disclosed is a sparse optimization method based on a cross-shaped three-dimensional imaging sonar array. The method comprises the following steps: firstly, constructing, based on a cross-shaped array, a beam pattern simultaneously applicable to a near field and a far field; then, constructing, according to the beam pattern, an energy function required by sparse optimization; next, introducing the disturbance of an array element position into a simulated annealing algorithm, and carrying out sparse optimization on the energy function by means of the simulated annealing algorithm to which the disturbance of the array element position is added, so as to increase the degree of freedom of sparse optimization and improve the sparse rate of the array; and finally, obtaining a sparsely-optimized cross-shaped array after the optimization.
Inventors:
CHEN YAOWU (CN)
LIU XUESONG (CN)
ZHOU FAN (CN)
JIANG RONGXIN (CN)
ZHAO DONGDONG (CN)
LIU XUESONG (CN)
ZHOU FAN (CN)
JIANG RONGXIN (CN)
ZHAO DONGDONG (CN)
Application Number:
PCT/CN2018/111157
Publication Date:
December 19, 2019
Filing Date:
October 22, 2018
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
G01S15/89
Foreign References:
| CN105354351A | 2016-02-24 | |||
| CN103308904A | 2013-09-18 | |||
| CN102798847A | 2012-11-28 | |||
| CN101625408A | 2010-01-13 | |||
| CN104656073A | 2015-05-27 | |||
| CN103675799A | 2014-03-26 | |||
| US20040158154A1 | 2004-08-12 |
Attorney, Agent or Firm:
HANGZHOU TIANQIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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