A FREQUENCY AGILE DIGITAL RADIO RECEIVER,申请号WO2013IB00686-传众专利搜索

A FREQUENCY AGILE DIGITAL RADIO RECEIVER

申请公布号：WO2013156836(A3)

申请号：WO2013IB00686

申请日期：2013.04.15

申请公布日期：2014.01.23

申请人：

TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

发明人：LAPORTE, PIERRE-ANDRE

分类号：H04B1/00

主分类号：H04B1/00

摘要：In a digital radio receiver, an analog-to-digital converter (ADC) converts a received analog radio frequency (RF) signal to a digital RF signal at a sample rate of fADC to generate a serial stream of RF samples. A serial-to-parallel converter converts the serial stream of RF samples into M parallel streams of RF samples, each stream having a sampling rate of fADC/M, where M is a positive integer greater than 1. The M parallel streams of RF samples are translated into M parallel streams of intermediate frequency (IF) samples centered about an IF of fADC/4, the M parallel streams of IF samples including a first set of even IF samples and a second set of odd IF samples. The M parallel streams of IF samples are then demodulated by applying a first set of associated coefficients to the first set of even IF samples to produce a first set of even demodulated samples and applying a second set of associated coefficients to the second set of odd IF samples to produce a second set of odd demodulated samples. The even demodulated samples are filtered using a first set of filter coefficients and the odd demodulated samples are filtered using a second set of filter coefficients to produce a complex baseband signal.