Patent ID: 8630372
Filing Date: 2014-01-14
Classification: H04L

Abstract:
1. A demodulation system, comprising: a first detector configured to receive a signal and configured to output, based on the received signal, first candidate symbol values (CSVs) for a group of symbols; and a second detector configured to: (i) receive the signal and the first CSVs and (ii) use the received signal from the second detector and the received first CSVs to produce one of (a) final modem bit estimates and (b) second CSVs for a group of symbols, wherein the first detector comprises: a demodulator configured to receive the signal and produce modem bit likelihood values based on the received signal from the demodulator; and a decoder configured to receive the modem bit likelihood values produced by the demodulator and configured to use the modem bit likelihood values to produce improved modem bit likelihood values.