Design of Compressed Sampling System Based on Digital Pre-Random Filter

Abstract:

Signals can be sampled in sub-Nyquist rate based on information sampling, which enables sample high bandwidth signal use low frequency. In this paper, a compressed sampling system based on multiphase pre-random filter is studied, in which the filtered signals by periodical random modulation in digital domain, then the spectrum information of original signals is reconstructed from multi-channel signals. The hardware system is designed based in GC5016 and DSP. Simulation and experiment results demonstrated the validity and practicability of signal spectrum detection.

• Periodical: Advanced Materials Research (Volumes 850-851)
• Pages: 957-960
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.850-851.957
• Online since: December 2013
• Authors: Dao Wen Han, An Min Wang, Juan Ying Zeng, De Bao Liu
• Keywords: Compressed Sampling, Pre-Random Filter, Signal Spectrum

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