Title: Astronomical/doppler combined navigation method for spacecraft
Application Number: 200610165578 Application Date: 2006.12.22
Publication Number: 1987356 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01C21/00;G01C21/24;G01C21/20;G01C21/02
Applicant(s) Name: Beijing Univ. of Aeronautics and Astronautics Address:
Inventor(s) Name: FAng Jiancheng;Ning Xiaolin;Wu Yuanyuan;Yang Zhaoh
Attorney & Agent: guanling lixin hua
Abstract:
    The invention combines independent astronavigation with Doppler method. Method combines direct sensing horizon with indirect sensing horizon is adopted in astronavigation. One-way Doppler is adopted in Doppler method. Using method of Unscented Kalman filtering carries out united filtering, estimating position of spacecraft and speed guidance message. The invention can be in use for determining navigation parameters of earth satellite, manned spacecraft accurately in applications of observation over the ground, communication, and positioning navigation etc.
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