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Geosynchronous orbit SAR satellite burst imaging work method

A geosynchronous orbit, satellite technology, applied in the direction of reflection/re-radiation of radio waves, use of re-radiation, measurement devices, etc., can solve the problems of no explanation or report, and data not yet collected, so as to improve application efficiency and reduce Synthetic aperture imaging working time, the effect of reducing difficulty

Inactive Publication Date: 2017-05-10
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

[0004] At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

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  • Geosynchronous orbit SAR satellite burst imaging work method
  • Geosynchronous orbit SAR satellite burst imaging work method
  • Geosynchronous orbit SAR satellite burst imaging work method

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0024] The method for the geosynchronous orbit SAR satellite burst imaging work of the present invention comprises the following steps:

[0025] Step 1. Design the orbit of the geosynchronous orbit SAR satellite according to the system task requirements. The orbit mainly includes the fixed point position of the orbit, the orbit inclination and the orbit eccentricity;

[0026] The specific orbit design of geosynchronous orbit SAR satellites can be based on system requirements such as coverage area,...

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Abstract

The invention provides a geosynchronous orbit SAR satellite burst imaging work method which comprises the following steps: in a first step, an orbit of a geosynchronous orbit SAR satellite is designed according to system task requirements; in a second step, based on orbit parameters, a geosynchronous orbit SAR satellite wave beam ground speed change law and an SAR satellite Doppler bandwidth change law are obtained via simulation analysis, and a geosynchronous orbit SAR satellite orientation resolution change law can also be obtained; in a third step, based on the geosynchronous orbit SAR satellite wave beam ground speed change law and a geosynchronous orbit SAR satellite burst imaging work mode, a work subaperture timing sequence is designed, a geosynchronous orbit SAR satellite full orbit work timing sequence can be obtained, and continuous observation of a full plotting band can be fulfilled. Application of the method disclosed in the invention can help improve application effectiveness of a geosynchronous orbit SAR satellite, and application prospects of the geosynchronous orbit SAR satellite can be widened.

Description

technical field [0001] The invention relates to a method for burst imaging work, in particular to a method for burst imaging work of geosynchronous orbit SAR satellites. Background technique [0002] The biggest feature of geosynchronous orbit SAR (Synthetic Aperture Radar, synthetic aperture radar) satellites is that they have high time resolution and quasi-real-time observation capabilities of key areas, which requires the SAR system to have the ability to work continuously. However, limited by the spaceborne power supply technology and capabilities, the traditional spaceborne SAR working system cannot meet the energy requirements of the SAR system for high-power and long-term work. Therefore, according to the mission requirements and technical characteristics of geosynchronous orbit SAR satellites, it is necessary to carry out research on new systems and new technologies, break through the traditional working system, and realize the continuous development of the entire su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/90
CPCG01S13/904G01S13/9058
Inventor 陈国忠陈筠力徐敏路瑞峰
Owner SHANGHAI SATELLITE ENG INST
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