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| A NEW QUADRATURE SAMPLING APPROACH FOR ARBITRARY BANDPASS SIGNAL WITHIN BASEBAND SAMPLING RATE |
| Lin Yunsong; Huang Yong; Xiao Xianci |
| Colle. of Electronic Engineering UEST of China Chengdu 610054 |
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Abstract A new quadrature sampling technique for arbitrary bandpass signal within baseband sampling rate is presented. The input bandpass signal whose carrier frequency lies in the A/D baseband sampling rate is first decimated by factor 2 and modulated by (-1)n, and then is interpolated by a linear phase FIR all-pass filter, finally the modulated complex envelope of bandpass signal can be produced.
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Received: 24 October 1997
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1999, Vol. 21 
