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Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.71 [2012] >
JSIR Vol.71(03) [March 2012] >
| Title: | Ultrasonic signal compressive detection with sub-Nyquist sampling rate |
| Authors: | Zhuang, Xiaoyan
Zhao, Yijiu
Dai, Zhijian
Wang, Houjun
Wang, Li |
| Keywords: | Analog-to-information Converter (AIC)
Compressive Sampling
Joint Signal Reconstruction
Sub-Nyquist Sampling
Ultrasonic Signal |
| Issue Date: | Mar-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This
study presents a compressed sensing (CS) based sampling approach for repetitive
ultrasonic signal. Proposed system considers recovering ultrasonic signal with
high equivalent sampling frequency from samples captured using
analog-to-digital converter (ADC) clocked at a rate lower than Nyquist rate. A
basis function is constructed to realize ultrasonic signal sparse
representation, which paves the way for applying CS theory to ultrasonic signal
sub-Nyquist sampling. A sampling architecture, applicable for ultrasonic
compressive detection, is developed. With this sampling system, an ultrasonic
signal sampled at ultralow rate, but still can be recovered with overwhelming
probability. |
| Page(s): | 195-199 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.71(03) [March 2012]
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