Star sensor navigation star catalogue screening method
A technology of star sensor and screening method, applied in astronomical navigation and other directions, can solve the problems of uncertain distribution of star catalogs, many redundant navigation stars, and complicated preparation process of star catalogs, so as to ensure reliability and applicability, and improve distribution. Uniformity, the effect of reducing the storage space of the star table
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[0032] The inventive method has been applied to the preparation of the Orbit Video Star (Zhuhai No. 1) nano-type star sensor navigation star catalog, and the ground test and on-orbit application show that the inventive method is feasible. In conjunction with this application example, the present invention is as follows figure 1 The detailed steps shown are as follows:
[0033] (1) The star sensor works through the stars in the sensitive sky area, and the two most important information of its detection target are the azimuth and magnitude of the stars. Although the current basic astronomical star catalog contains the azimuth and magnitude of the stars, but specific to the actual product, due to the difference in the spectral response of the detector, it is necessary to use the color index to fit the instrument magnitude used in the calculation product as needed.
[0034] (2) According to the limit detection sensitivity of the product, the selected basic astronomical star catalo...
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