US Patent 7130329 Apparatus and method for radio frequency tracking and acquisition

A system and method for adjusting loop bandwidth in a synchronization loop of a radio receiver uses a noncoherent peak detector to determine the maximum magnitude and timing of incoming data at various code phase offsets. The maximum magnitude and timing are used in subsequent processing with the maximum magnitude value used to determine an adjustment factor. The timing information associated with the maximum signal value is used to despread the incoming signal. The despread incoming signal is subsequently scaled in accordance with the determined adjustment factor such that the input to the synchronization loop is scaled to produce the desired loop bandwidth.