MATEC Web Conf.
Volume 75, 20162016 International Conference on Measurement Instrumentation and Electronics (ICMIE 2016)
|Number of page(s)||6|
|Section||Signal Processing and Pattern Recognition|
|Published online||01 September 2016|
Application and Optimization of Kalman Filter for Baseband Signal Processing of GPS Receivers
Beijing Microelectronics Technology Institute, Beijing, 100076, China
a Corresponding author: firstname.lastname@example.org
High sensitivity tracking in GPS receiver is required in many weak signal circumstances. The key of improving sensitivity is the optimization of the loop filter in tracking. As Kalman filter is the most optimized linear filter, it is used in many engineering fields. This article introduced the application of Kalman filter as the loop filter of the carrier tracking loop in GPS receiver, to improve tracking sensitivity. The traditional loop filter is replaced. Simulation results show that the new structure improves the tracking sensitivity by 6dB and can make the tracking loop more robust when the navigation signal is languishing. The optimization of theKalman filter is also analysed, which further improves the sensitivity by 4dB.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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