Characteristics of Kalman Filters for GNSS Signal Tracking Loop
Characteristics of Kalman Filters for GNSS Signal Tracking Loop
- New search for: Jong-Hoon Won,
- New search for: Pany, T.
- New search for: Eissfeller, B.
- New search for: Jong-Hoon Won,
- New search for: Pany, T.
- New search for: Eissfeller, B.
Characteristics of signal tracking Kalman filter (KF) approaches for a Global Navigation Satellite System (GNSS) receiver are presented. In particular the direct-state KF is designed by using a state vector for signal parameters not for signal parameter errors, so as to directly utilize the discriminator output as a measurement residual. This enables the reuse of the existing signal tracking loop structure by simply adjusting the filter coefficients based on a time-varying optimal Kalman gain. The characteristics of the direct-state KF together with the error-state KF are analyzed by comparing their noise bandwidth and open- and closed-loop transfer functions with those of a traditional method. These KF approaches are mathematically equivalent to the traditional method except for the use of time-varying gains. This fact provides an insight how to tune the designed KFs based on their expected performances.
Document information
Characteristics of Kalman Filters for GNSS Signal Tracking Loop
IEEE Transactions on Aerospace and Electronic Systems ; 48 , 4 ; 3671-3681
2012-10-01
6754479 byte
Article (Journal)
Electronic Resource
English
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