Title :
Quadrature Sampling with High Dynamic Range
Author :
Rice, D.W. ; Wu, K.H.
Author_Institution :
Communications Research Center P.O. Box 11490, Station H Ottawa, Ont., Canada K2H 8S2 Deceased
Abstract :
Many radio and sonar systems require signal outputs in complex low-pass form. To achieve this, it is possible to use uniform sampling of the bandpass signal, together with computation of the quadrature component by way of a Hilbert transform. The bandpass to low-pass translation is accomplished by undersampling. A hardware implementation is described which achieves 70 dB spurious-free dynamic range and a bandwidth of 30 kHz.
Keywords :
Adaptive arrays; Band pass filters; Bandwidth; Dynamic range; Frequency; Hardware; Sampling methods; Signal processing; Signal sampling; Sonar;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.1982.309296