Stationary satellite imaging navigation and registered attitude motion compensation method

Abstract

The present invention provides a stationary satellite imaging navigation and registered attitude motion compensation method. The method comprises the steps of 1, analyzing the light path of the scanning reflection mechanism of a remote-sensing instrument, and writing an expression from the line of sight of an instrument imaging system to the emergent line of sight of the instrument; 2, adding a compensation amount to the corner of the scanning reflection mechanism of the remote-sensing instrument, and establishing a compensated emergent implementing expression of the instrument; 3, establishing an equation according to the fact the emergent line of sight of the instrument of the remote-sensing instrument with a non-compensated satellite zero-attitude instrument is equal to the emergent line of sight of the instrument having the attitude motion and with the compensation amount added to the scanning reflection mechanism, and then solving the expression of the compensation amount; 4, subjecting the expression of the compensation amount to simulation verification to ensure the derivation correctness. According to the invention, the influence of the satellite attitude motion on the sight pointing, imaging navigation and registration effects of the instrument can be avoided. Meanwhile, based on the method, the attitude problem can be solved in the more targeted manner. Therefore, the system development difficulty is reduced and the engineering realizability is improved.

Description

technical field [0001] The invention relates to an attitude motion compensation method, in particular to an attitude motion compensation method for stationary satellite imaging navigation and registration. Background technique [0002] In numerical weather prediction, it is necessary to locate regional complex weather, track the development trend of severe weather and generate cloud image animation. This requires that the absolute geographic location corresponding to the image is accurately positioned, and the relative positional relationship registration of adjacent images is accurate. The accuracy of imaging and navigation registration is related to the processing accuracy of quantitative remote sensing products such as weather diagnosis, cloud image analysis, and disaster monitoring applications. However, satellite platforms and remote sensing instruments are affected by factors such as space mechanical environment and thermal environment changes. Satellites will have or...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the prior art, the object of the present invention is to provide a motion compensation method for stationary satellite imaging navigation and registration, which solves the problem of line-of-sight error during the imaging period when the satellite is disturbed by the space environment during orbital operation , the present invention enables the remote sensing satellite to navigate the scanning path of the instrument line of sight on the surface of the earth to the expected position by compensating the interference and influence of the space environment, and the resulting image is consistent with the nominal grid of the earth generated by the satellite in the nominal ideal situation The image is consistent, and the error is controlled within the index range

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