Importance

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Abstract

A receiver scans through two different search windows to detect a received signal: a first search window and a second search window. The timing of the second search window is adjusted after every processing cycle to follow the detected signal, while the timing of the first search window remains fixed. If the timing of the detected signal remains relatively constant for a sufficient period of time, then the timing of both the first search window and the second search window are adjusted based on the timing of the most recently detected signal. In this way, the receiver can continue to detect the received signal, even when the timing of the received signal varies greatly over time, without necessarily changing the first search window.

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First Claim