TY - GEN
T1 - A blind spectrum recovery algorithm for sparse wideband signals based on backtracking
AU - Fu, Ning
AU - Zhang, Jingchao
AU - Li-Yan, Qiao
AU - Zhang, Miao
AU - Wang, Gang
PY - 2012
Y1 - 2012
N2 - This paper proposed a novel recovery algorithm for sparse wideband signals. Conventional recovery methods are mainly required the frequency support as a prior, or are based on some compressed sensing (CS) recovery algorithms, such as simultaneous orthogonal matching pursuit (SOMP), which identifies a single spectrum band one time, and couldn't refine the selected spectrum band that is wrong. The proposed algorithm adopts a backtracking strategy. In this strategy, the proposed algorithm can maintain the correct frequency supports and refine the wrong ones during next iteration. The expectation is that the recursive refinements of the estimate of the frequency support set will lead a higher success rate than SOMP. Simulation results demonstrate the proposed algorithm outperforms SOMP.
AB - This paper proposed a novel recovery algorithm for sparse wideband signals. Conventional recovery methods are mainly required the frequency support as a prior, or are based on some compressed sensing (CS) recovery algorithms, such as simultaneous orthogonal matching pursuit (SOMP), which identifies a single spectrum band one time, and couldn't refine the selected spectrum band that is wrong. The proposed algorithm adopts a backtracking strategy. In this strategy, the proposed algorithm can maintain the correct frequency supports and refine the wrong ones during next iteration. The expectation is that the recursive refinements of the estimate of the frequency support set will lead a higher success rate than SOMP. Simulation results demonstrate the proposed algorithm outperforms SOMP.
KW - backtracking
KW - compressed sensing
KW - modulated wideband converter
KW - sparse wideband signals
UR - https://www.scopus.com/pages/publications/84864236975
U2 - 10.1109/I2MTC.2012.6229299
DO - 10.1109/I2MTC.2012.6229299
M3 - 会议稿件
AN - SCOPUS:84864236975
SN - 9781457717710
T3 - 2012 IEEE I2MTC - International Instrumentation and Measurement Technology Conference, Proceedings
SP - 1708
EP - 1711
BT - 2012 IEEE I2MTC - International Instrumentation and Measurement Technology Conference, Proceedings
T2 - 2012 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2012
Y2 - 13 May 2012 through 16 May 2012
ER -