A method for searching and tracking signals for highly mobile devices.

Abstract

This invention proposes a method for signal acquisition and tracking for highly mobile devices. The acquisition method is divided into two stages: parallel rough search to optimize time and sequential fine search to accurately determine parameters, suppress Doppler drift and phase shift. The results from this stage are input to the tracking loop using an adaptive Kalman filter, which helps predict and maintain stable signal locking even in high-acceleration environments. The system utilizes the parallel logic structure of the FPGA to ensure real-time performance and high reliability for the device.

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