| Citation: | ZHANG Y，LIU J. Precise orbit determination method for angle-only observation data of space debris based on angle conversion theory[J]. Journal of Beijing University of Aeronautics and Astronautics，2023，49（7）：1600-1605 （in Chinese） doi: 10.13700/j.bh.1001-5965.2021.0507
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On the basis of the angle conversion method, a brand-new accurate orbit determination technique for space debris was developed. First, based on the commonly used two-line-element (TLE) data application requirements, a TLE precise orbit determination model based on the SGP4/SDP4 forecast model was established according to the differential idea. Secondly, the advantages and disadvantages of the original definition method and the right ascension projection method were discussed by taking right ascension-declination observation as an example. Then the angle conversion method was proposed, which converts the two-element angle data into three-element angle data. Finally verifies based on the simulation that when the observation data is concentrated in the direction of the zenith of the station, the angle conversion method could increase the speed of precise orbit determination by about 25%, and increase the accuracy of orbit determination by 2−10 times.
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