Patent
Microwave three-dimensional imaging method based on multi-phase center observation constrained optimization
Hong Wen,Wang Yanping,Tan Weixian,Peng Xueming,Lin Yun,Ding Chibiao +5 more
- 05 Mar 2014
2
TL;DR: In this paper, a microwave 3D imaging method based on multi-phase center observation constrained optimization is proposed. But the method is applicable to microwave 3-D imaging of uniform synthetic aperture globe observation geometric description under the condition of different sampling constraints and different phase center quantities.
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Abstract: The invention discloses a microwave three-dimensional imaging method based on multi-phase center observation constrained optimization. The microwave three-dimensional imaging method comprises the following steps: step A: imaging a target by a multi-phase center; pre-processing a received target echo signal after imaging; step B: carrying out distance attenuation factor compensation and antenna pattern correction processing on the pre-processed echo signal; step C: processing the compensated and corrected echo signal by adopting an observation constrained optimization method; and step D: extracting an observation region three-dimensional microwave scattering image, an observation region scene three-dimensional digital surface model or an observation region scene orthographic projection microwave image from a processing result of the step C. The method is applicable to microwave three-dimensional imaging of uniform synthetic aperture globe observation geometric description under the condition of different sampling constraints and different phase center quantities.
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Citations
Patent
Three-dimensional correlated imaging method based on phased array radar
Li Yachao,Ran Xu,Xing Mengdao,Huang Pingping,Yinghui Quan,Zhang Haobo +5 more
- 03 Dec 2014
TL;DR: In this article, a three-dimensional correlated imaging method based on the phased array radar is proposed, where the estimated value of the scattering coefficient vector of the target scattering point in the u distance unit is obtained by ranking the two-dimensional images of all the distance units in the sequence.
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Method for establishing space coordinate system suitable for near-field target imaging
Zheng Weimin,Tong Fengxian +1 more
- 16 Nov 2016
TL;DR: In this paper, the authors proposed a method for establishing a space coordinate system suitable for near-field target imaging, which consists of obtaining position coordinates of observation stations and an observed target and a signal emission wavelength or frequency; determining directions of U, V, and W axes to establish a UVW space rectangular coordinate system; and calculating the coordinates of a baseline vector constituted from any two observation stations in the UVW coordinate system.