Spread spectrum demodulation using a subsampling communication receiver architecture

摘要

A first periodic voltage waveform ( 20 ) is downconverted into a second periodic voltage waveform ( 35, 36 ). A plurality of temporally distinct samples (SA 1 , SA 2 , . . . ) respectively indicative of areas under corresponding fractional cycles of the first voltage waveform are obtained. The samples are obtained in response to a control signal indicative of a code used to produce the first voltage waveform, and the samples are combined to produce the second voltage waveform.