Wideband Sparse Signal Acquisition Based on Serial Multi-Coset Sampling
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-03
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Traditional parallel multi-coset sampling (MCS), which has several sub-Analog-to-Digital-Converters (sub-ADCs) working parallelly, is an attractive sub-Nyquist sampling technique for wideband sparse signals.
However, the mismatch among sub-ADCs in traditional parallel MCS, such as bias, gain, and timing skew mismatch, degrades the signal acquisition performance greatly.
In this paper, a serial MCS scheme based on clocking single ADC with nonuniform clock is proposed.
The nonuniform sampling clock is generated by a pseudo-random binary sequence generator.
An additional Sample/Hold (S/H) is used to improve the analog bandwidth of the serial MCS.
Moreover, universal sampling pattern is designed for the proposed serial MCS.
The sampling pattern design should not only maximize the Kruskal rank of compressed sensing matrix but also take the ADC’s sub-Nyquist sampling rate into consideration.
Numeral experiments are presented demonstrating that the mismatch among sub-ADCs in traditional parallel MCS degrades the reconstruction performance greatly, and the proposed serial MCS can avoid the mismatch tactfully.
American Psychological Association (APA)
Liu, Changjian& Wang, HouJun. 2018. Wideband Sparse Signal Acquisition Based on Serial Multi-Coset Sampling. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1209582
Modern Language Association (MLA)
Liu, Changjian& Wang, HouJun. Wideband Sparse Signal Acquisition Based on Serial Multi-Coset Sampling. Mathematical Problems in Engineering No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1209582
American Medical Association (AMA)
Liu, Changjian& Wang, HouJun. Wideband Sparse Signal Acquisition Based on Serial Multi-Coset Sampling. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1209582
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209582