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Super-resolution satellite calibration method based on laser detector array

A laser detector and super-resolution technology, applied in satellite radio beacon positioning systems, instruments, measuring devices, etc., can solve the problem of low calibration accuracy and achieve the effect of overcoming low accuracy

Active Publication Date: 2018-08-31
XIDIAN UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a satellite calibration method based on laser detector array super-resolution, which is used to solve the technical problem of low calibration accuracy existing in the existing satellite calibration method

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  • Super-resolution satellite calibration method based on laser detector array
  • Super-resolution satellite calibration method based on laser detector array
  • Super-resolution satellite calibration method based on laser detector array

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] refer to figure 1 , a satellite calibration system based on laser detector array super-resolution, including a spaceborne laser altimeter, a spaceborne navigation and positioning system, a ground laser detector array and a ground computer. The role of the spaceborne laser altimeter is to emit laser Gaussian signals for the ground laser detectors to receive. The function of the spaceborne navigation and positioning system is to obtain the relative position of the satellite and the ground laser detector array and transmit the satellite positioning coordinate information to the ground computer. The function of the ground laser detector array is to obtain the energy information of the laser and quantify the energy level and transmit it to the ground computer. The ground computer obtains the super-resolution image through the ener...

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Abstract

The invention provides a super-resolution satellite calibration method based on a laser detector array so that a technical problem of low calibration precision of the existing satellite calibration method can be solved. The method is implemented as follows: a ground laser detector array is arranged; and a satellite-borne laser altimeter emits Gaussian pulse laser to the ground laser detector array, all laser detectors obtain energy level values of the Gaussian pulse laser, a ground computer obtains an energy level distribution map, the ground computer obtains a super-resolution image, the ground computer filters the super-resolution image and calculates a centroid coordinate of the filtered image, and the ground computer obtains a pointing angle of the satellite. The super-resolution satellite calibration method is applied to the on-orbit calibration for the height finding system of the satellite-borne laser altimeter.

Description

technical field [0001] The invention belongs to the technical field of on-orbit calibration of space-borne laser altimeters, and designs a satellite calibration method, in particular to an on-orbit satellite calibration method of space-borne laser altimeters based on ground field super-resolution, which is used for space-borne The field of on-orbit calibration of laser altimeter altimetry system. Background technique [0002] When surveying and mapping satellites acquire satellite images, in order to generate high-resolution digital elevation models, accurate satellite calibration parameters must be provided. Satellite calibration is the pointing angle parameter between the satellite and the ground calculated from the data related to the satellite calibration system obtained by various sensors. Currently available calibration methods include calibration of mid-infrared sensors, cross-calibration of image and radiation transmission, single calibration of the relative deviati...

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Application Information

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IPC IPC(8): G01S19/40G01C25/00
CPCG01C25/00G01S19/40
Inventor 张静江从辉李云松孔孟行赵亮亮
Owner XIDIAN UNIV
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