GPS Timer Transfer Smooth Based on Kalman Filter

Precise time synchronization is the precondition of precise navigation in radio navigation system, high frequency stability cesium atomic clock is used in this system as frequency reference and GPS time receiver is used. To solve the problem of system synchronize error caused by low quality of GPS time receiver in short time, shift average method and Kalman filter is introduced in this paper. The results of simulation indicate that Kalman filter can decrease the error caused by GPS time receiver jitter effectively.

[1]  Atsushi Imaoka,et al.  Accurate time/frequency transfer method using bidirectional WDM transmission , 1998, IEEE Trans. Instrum. Meas..

[2]  V. Vaidehi,et al.  IMM Based Kalman Filter for Channel Estimation in UWB OFDM Systems , 2007, 2007 International Conference on Signal Processing, Communications and Networking.

[3]  S. Marcos,et al.  A network of Kalman filters based detector for joint MAI and ISI suppression in asynchronous DS-CDMA systems , 2002, IEEE Seventh International Symposium on Spread Spectrum Techniques and Applications,.

[4]  T. Başar,et al.  A New Approach to Linear Filtering and Prediction Problems , 2001 .

[5]  Birsen Yazici,et al.  Kalman filtering for self-similar processes , 2006, Signal Process..

[6]  R. Kaszynski,et al.  Using the parametric time-varying filter to average BAEP signals , 2002, IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276).

[7]  J. W. Chaffee,et al.  The GPS filtering problem , 1992, IEEE PLANS 92 Position Location and Navigation Symposium Record.

[8]  A. R. Stubberud,et al.  A neural extended Kalman filter multiple model tracker , 2003, Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492).