A parallel sampling scheme for ultra-wideband signal based on the random projection
High-rate analog-to-digital converters (ADC's) are ubiquitous and critical components in advance signal processing, such as software radio and ultra wideband (UWB) radar system. In this paper, we propose an alternative parallel sampling scheme, which is based on random projection, for an ultra- wideband analog to digital conversion. The sampling rate by using proposed scheme can be reduced to 1/m Nyquist sampling rate where m is the number of parallel channel. Compared with conventional ADCs based on pulse code modulation (PCM), the proposed method makes the sub-Nyquist sampling possible. And compared with other parallel sampling scheme methods, it can be easy implemented without any apriori knowledge about the signal. And it is very suitable for sampling UWB signals with short time support. Additionally, the detail implementation structure, performance analysis and simulation results of proposed method are given.