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The Research Of Microwave Radar Correlated Imaging Based On Compressed Sensing

Posted on:2018-08-01Degree:MasterType:Thesis
Country:ChinaCandidate:J R WangFull Text:PDF
GTID:2348330518996248Subject:Physics
Abstract/Summary:PDF Full Text Request
Correlated imaging is relatively novel in the optical field, which includes quantum correlated imaging and classical correlated imaging.Light source is the only difference between them. Correlated imaging is non-local and attracts lots of researchers strongly. Based upon the theory of detection process separating from imaging process, this article utilized phased-array antenna to simulate the non spatio-temporal radiation field.Then it yielded a simulation result of radiation field, which is got from the different array arrangement. And we put out three-dimensional imaging of microwave radar correlated imaging, which is based on compressed sensing. Afterwards, the result of target scattering point imaging under different spacing and different bandwidth is given. The detailed contents and arrangements are as follows. In the first place, we introduce the correlated imaging theory and the development situation in the field of remote sensing detection. In comparison with traditional radar imaging(S AR/ISAR), it's possible for correlated imaging to overcome the imaging bottleneck. Secondly, this article elaborates the basic theory of microwave radar correlated imaging, which is based upon classical correlated imaging theory. The microwave radar correlated imaging mainly includes the following procedure: Occurrence of non spatio-temporal random stochastic radiation field, and recording radiation field template; The interaction between radiation field and target; Receiving echoes and associating echoes with recorded radiation field template, and in order to get target images, decoupling target scattering coefficient. Then we can obtain the three-dimensional imaging by simulation experiment, and briefly analyze the impact on image resolution by related parameters. In the end, the article briefly outlines present development situation of quantum radar, three kinds of sensors, and the important research significance of quantum information development.
Keywords/Search Tags:quantum information, correlated imaging, non spatiotemporal radiation field, compressed sensing
PDF Full Text Request
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