Radio frequency (RF) receivers having whitened digital frame processing and related methods

摘要

Radio frequency (RF) receivers having whitened digital frame processing and related methods are disclosed. Disclosed embodiments whiten frequency domain interference generated periodic current pulses from by digital frame processing by applying a variable time delay to the frame control signals that initiate digital frame processing. For one embodiment, the variable time delay is achieved by waiting a variable number of digital clock cycles for each digital frame processing cycle. Still further, a variable number of no operation (NO-OP) cycles can be performed at the beginning of each frame processing cycle to provide the variable time delay for the variable number of digital clock cycles. Other variable time delay techniques could also be utilized while still taking advantage of the whitened digital frame processing embodiments described herein.

主权项

1. A method for operating a receiver system, comprising:
receiving a radio frequency (RF) signal spectrum; converting analog signals associated with the radio frequency (RF) signal spectrum to digital samples; generating digital frames including blocks of multiple digital samples; digitally processing the digital frames with a digital processor to generate digital output data, the digital processing of each digital frame by the digital processor including:
receiving a frame control signal indicating a start for the digital processing of the digital frame;waiting for a variable time delay; andinitiating digital processing of the digital frame after the variable time delay; wherein the receiving, converting, generating, and digitally processing steps are performed within a single integrated circuit.