Title: Combined positioning method and apparatus using GPS, gyroscope, speedometer
Application Number: 200610118102 Application Date: 2006.11.09
Publication Number: 1948910 Publication Date: 2007.04.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01C21/26;G01C21/28;G01C21/16;G01C21/18;G01S5/02;G01S5/14
Applicant(s) Name: Fudan Univ. Address:
Inventor(s) Name: Lu Qiyong;Lin Luzhou;Wang Lichao
Attorney & Agent: lufei shengzhi fan
Abstract:
    The invention relates to GPS and MEMS gyroscope and speedometer combination location method and device. While the GPS signal is good, it uses the GPS location signal to locate, rectifies by the MEMS gyroscope and speedometer, synthesize the signal by Kalman filtering algorithm. While the GPS is lost, or the number of the receiving satellite is less than three, it switches to MEMS gyroscope and speedometer to locate. The combination navigation can improve GPS location precision, makes up the unable location defect caused by the GPS is covered.
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