Compressed sensing based multi-rate sub-Nyquist sampling system

doi:10.1016/S1005-8885(15)60644-6

中国邮电高校学报(英文) ›› 2015, Vol. 22 ›› Issue (2): 89-95.doi: 10.1016/S1005-8885(15)60644-6

Compressed sensing based multi-rate sub-Nyquist sampling system

熊艳伟¹,张建华²,张平³

1. 北京邮电大学
2.
3. 北京邮电大学无线新技术研究所

收稿日期:2014-03-21 修回日期:2014-10-09 出版日期:2015-04-30 发布日期:2015-04-22
通讯作者: 熊艳伟 E-mail:cherryxiong86@gmail.com
基金资助:
国家科技支撑项目;国家科技部重大专项

Compressed sensing based multi-rate sub-Nyquist sampling system

Received:2014-03-21 Revised:2014-10-09 Online:2015-04-30 Published:2015-04-22
Contact: Yan-Wei XIONG E-mail:cherryxiong86@gmail.com

摘要/Abstract

摘要： Signal sampling is a vital component in modern information technology. As the signal bandwidth becomes wider, the sampling rate of analog-to-digital conversion (ADC) based on Shannon-Nyquist theorem is more and more high and may be beyond its capacity. However the analog to information converter (AIC) based on compressed sensing (CS) is designed to sample the analog signals at a sub-Nyquist sampling rate. A new multi-rate sub-Nyquist sampling (MSS) system was proposed in this article, it has one mixer, one integrator and several parallel ADCs with different sampling rates. Simulation shows the signals can be reconstructed in high probability even though the sampling rate is much lower than the Nyquist sampling rate.

关键词: CS , sub-Nyquist rate, AIC, MSS

Abstract: Signal sampling is a vital component in modern information technology. As the signal bandwidth becomes wider, the sampling rate of analog-to-digital conversion (ADC) based on Shannon-Nyquist theorem is more and more high and may be beyond its capacity. However the analog to information converter (AIC) based on compressed sensing (CS) is designed to sample the analog signals at a sub-Nyquist sampling rate. A new multi-rate sub-Nyquist sampling (MSS) system was proposed in this article, it has one mixer, one integrator and several parallel ADCs with different sampling rates. Simulation shows the signals can be reconstructed in high probability even though the sampling rate is much lower than the Nyquist sampling rate.

Key words: CS , sub-Nyquist rate, AIC, MSS

参考文献

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Compressed sensing based multi-rate sub-Nyquist sampling system

Compressed sensing based multi-rate sub-Nyquist sampling system

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