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《Chinese Journal of Sensors and Actuators》 2007-02
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Research on Multiple Base-Stations Distances Estimation Algorithm in Quasi-GPS Ultrasonic Location System

SU Shao-jing,CHENG Xiao-chang*,WANG Yue-ke,DU Jin-bang(School of Mechatronics Engineering and Automation,National Uni v.of defense Technology,Changsha 410073,China)  
In view of the deficiencies of the conventional ultra so nic location system,Quasi-GPS ultrasonic location system and its work principl e are introduced.Then the ultrasonic spread-spectrum distance measurement Tim e Delay Estimation(TDE)model is established and the fast algorithm based for s ingle base-station distance estimation based on FFT is presented on the above m odel.Considering of the specialties of the received signal in multiple base-st ation,the multiple base-station distance estimation algorithm based on STFT is introduced based on the single base-station distance estimation algorithm.It is proved by experiment that we can obtain exactly the distance estimation value by the above algorithm whose operation is not great,if we have the prior knowl edge of the transmit signal carrier frequency.
【CateGory Index】: TB559
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【Co-citations】
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1 SU Shao-jing,CHENG Xiao-chang, WANG Yue-ke (School of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China);Research on Method of TDE in Ultrasonic Distance Measurement Based on Power-Cepstrum[J];Chinese Journal of Sensors and Actuators;2006-03
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