Tolerable range of uniform bandpass sampling for software defined radio

Bandpass sampling is an useful alternative to directly convert analog bandpass signals to digital signals without down conversion for software defined radio since a desired input signal to the receiver is normally the bandpass signal with higher carrier frequency. In practice, the real circuit components will deviate from their normal design values due to manufacturing tolerance, and environmental change. To cope with it, we, propose a sampling range with the normal placement when there exist the deviations of sampling and carrier frequencies.