Software Defined-Radio Testbed for Simulation and Real-World Testing of Radio Frequency Sub-Sampling Receiver

In RF sub-sampling receiver a passband signal is sampled at a rate lower than the Nyquist sampling rate and down-converted to near baseband or baseband via intentional aliasing. The advantages of sub-sampling receiver include lower power consumption, less complicated hardware and capability of multi channels signal extraction. The disadvantages of sub-sampling receiver include low tolerance to jitter and nonlinear distortions. In this work, a sub-sampling receiver testbed has been developed using software-defined radio. Currently most of the researches in sub-sampling receiver use only software tools like MATLAB to analyse and evaluate the developed algorithms. In those cases, there is no real signal being generated, and the algorithms are not tested on any hardware. Hence a testbed which generates real signals, performs RF subsampling and digitisation using hardware is needed