发明名称 DIRECT RF COMPLEX ANALOG TO DIGITAL CONVERTER
摘要 An analog to digital converter device including: an input to receive a radio frequency (RF) signal; a plurality of delay elements coupled in series to the input, wherein each element has an output configured to provide the RF signal with a temporal delay corresponding to a different number of the delay elements; a sample rate reduction system having a plurality of inputs each being coupled to a corresponding one of the delay element outputs, and configured to sample the delayed RF signals and provide M-sample outputs, each of the M-sample outputs being sampled at a reduced sampling rate equal to the sampling rate divided by M, M being an integer sample rate reduction value; and an Nth order complex bandpass filter coupled to the sample rate reduction system, the complex bandpass filter being configured to filter each of the M-sample outputs to obtain a plurality of complex baseband signals.
申请公布号 US2009179786(A1) 申请公布日期 2009.07.16
申请号 US20080014846 申请日期 2008.01.16
申请人 LOCKHEED MARTIN CORPORATION 发明人 MARTELLOCK PAUL T.;TIETJEN BYRON W.;WALSH MICHAEL J.;PETERSON LINDSAY C.
分类号 H03M1/12 主分类号 H03M1/12
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