Star pattern recognition method based on directed loop
A technology of star map recognition and directional rings, which is applied in astronomical navigation and other directions, and can solve problems such as camera calibration errors, recognition rate and star magnitude errors, etc.
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[0064] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0065] The invention proposes a star pattern recognition method. In the present invention, the parameters of the stellar camera are set as follows: the field of view is 8°×8°, the size of the CCD area array is 512×512 pixels, and the size of a single pixel is 10um. According to the main distance and field of view and the area array The principal distance is 36.61mm, and the principal point and distortion parameters are all set to 0.
[0066] Concrete steps of the present invention are as follows:
[0067] Step 1, store the navigation star table in advance;
[0068] The navigation star catalog includes a basic star catalog and a star pair angular distance index table. The basic star catalog is extracted from the original star catalog according to the principle of star brightness and uniformity. The basic star catalog includes the star's asterisk, magnitude,...
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