发明名称 SELF-CALIBRATION ATTITUDE DETERMINATION FOR GLOBAL POSITIONING SYSTEM
摘要 PROBLEM TO BE SOLVED: To accomplish parallel generation of attitude by delivering an attitude correction and rate correction signals containing a line bias correction signal to an updating means for combining them with an LOS signal and obtaining the pitch, roll, yaw and the attitude rate using concurrent parallel line bias estimation values. SOLUTION: A receiving RF signal is delivered to a hard limiter 30 and converted into an IF signal. It is delivered to 9 channel in order to generate a difference phase measurementΔϕij and a rateδϕ*ij being inputted to a least square fit. These measurementsΔϕij,δϕ*ij are inputted from an input 31 to an attitude solution unit 32 which receives a base line vector, a line bias input 33 and an integer correction input 35. One feedback output 37 is fed through a line bias estimator 34 to an adder 40 while other is fed thereto through an integer estimator 36 and an integrity check unit 38. The attitude solution unit 32 produces the pitch, roll, yaw and the attitude rate according to an algorithm in response to the inputs at 31, 33 and 35.
申请公布号 JPH11190770(A) 申请公布日期 1999.07.13
申请号 JP19980262144 申请日期 1998.09.16
申请人 SPACE SYST LORAL INC 发明人 FULLER RICHARD A;RODDEN JOHN J
分类号 G01C21/24;B64G1/24;B64G1/36;G01S5/02;G01S5/14;G01S19/53;G05D1/08;(IPC1-7):G01S5/02 主分类号 G01C21/24
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