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Microwave correlated imaging simulation method based on analysis surface element

A simulation method and microwave related technology, applied in radio wave measurement system, radio wave reflection/re-radiation, using re-radiation, etc.

Active Publication Date: 2017-05-17
XIAN INSTITUE OF SPACE RADIO TECH
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  • Description
  • Claims
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Problems solved by technology

For example, the electromagnetic scattering characteristics of the target scene under the irradiation of random radiation field, the geometric characteristics of the multiple scattering mechanism in the correlation image, etc., the electromagnetic scattering characteristics of the target under the microwave correlation imaging system need to be further studied

Method used

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  • Microwave correlated imaging simulation method based on analysis surface element
  • Microwave correlated imaging simulation method based on analysis surface element

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Embodiment Construction

[0030] The embodiments and effects of the present invention will be further described in detail below.

[0031] Embodiments of the present invention are as figure 1 As shown: First, the target 3D model scene is constructed, and the corresponding target scene space information is obtained according to the observation parameters, and the single scattering coefficient and multiple scattering coefficient of the target scene are calculated to obtain the scattering coefficient distribution of the observed scene, and then according to the random antenna beam The radiation field in the imaging plane calculates the echo signal of the target scene, and finally correlates the radiation field and the echo signal to obtain the simulation image result. Its implementation steps are as follows:

[0032] 1) Construct 3D target scene coordinate system

[0033] 1.1) Read the 3D target model file, input the radar working parameters, and the target position point is o t , the radar position poi...

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Abstract

The invention discloses a microwave correlated imaging simulation method based on an analysis surface element. The method comprises the steps: firstly constructing a target 3D model scene, obtaining the space information of a corresponding target scene according to observation parameters, calculating a single-scattering coefficient and a multi-scattering coefficient of the target scene, and obtaining the scattering coefficient distribution of the observation scene; secondly calculating an echo signal of the target scene according to a radiation field of a random antenna wave beam in an imaging plane; finally carrying out the correlating of the radiation field and the echo signal, and obtaining a simulation image result. The method achieves a quick simulation process in correlation imaging under the condition of the random radiation field, gives a solution for distributed scene correlation imaging high-efficiency simulation, can deepen the understanding of the imaging mechanism and scattering mechanism in a whole correlated imaging link, provides support for the design and index argument of the design of a correlated imaging radar system, also can be used for subsequent correlated imaging evaluation and image interpretation, and is high in practical value.

Description

technical field [0001] The invention relates to a microwave correlation imaging simulation method based on analytical bins, and mainly relates to the field of research and development of microwave correlation imaging radar systems. Background technique [0002] The microwave correlation imaging system is a brand-new staring imaging system with high spatial resolution, high temporal resolution, and all-weather and all-weather. This system will change the traditional microwave imaging system and mode, solve the dilemma that the synthetic aperture technology is currently faced with the application of the motion platform, and expand the application field and scope of microwave imaging. Due to the novelty of its system, microwave staring correlation imaging technology has extremely broad application prospects. This technology is expected to subvert traditional radar imaging technology and become the development direction of a new generation of radar in the future. In application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/89G01S7/292
CPCG01S7/292G01S13/89
Inventor 熊文昌王伟伟杨晓超张欣李渝林晨晨
Owner XIAN INSTITUE OF SPACE RADIO TECH
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