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Content Provider | IET Digital Library |
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Author | Zhang, Chaozhu Qiu, Peipei Xu, Hongyi |
Abstract | The compressed sensing (CS) radar receiver based on the theory of CS has a great advantage in receiving wide-band signal and can receive high-frequency radar signal at a sampling rate far lower than the traditional receiver. However, in order to obtain the information of the target signal, the parameters of the reconstructed signal still need to be measured by conventional methods. In order to make full use of the compressed sampling and the characteristics of radar signals, this study proposed a cascading dictionary matching pursuit algorithm based on block-sparsity (BS-CDMP) to achieve fast identification and reconstruction of received signals. First, a signal-level redundant dictionary is constructed for quickly identifying the signal in which the authors are interested in. Then, they study the feasibility of cascading the signal-level redundant dictionary and the DFT basis as a whole sparsity dictionary. Finally, the block sparsity is introduced for the selection of different parts of the dictionary during greedy iteration. Experimental results show that their proposed algorithm has considerable and universal reconfiguration performance and can directly perform fast reconstruction and recognition of the target signal. |
Starting Page | 5498 |
Ending Page | 5502 |
Page Count | 5 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 19, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/19 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0448 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-05-30 |
Access Restriction | Open |
Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
Subject Keyword | Block Sparsity Block-sparsity Cascading Dictionary Cascading Dictionary Matching Pursuit Algorithm Compressed Sampling Compressed Sensing Compressed Sensing Radar Receiver DFT Basis Discrete Fourier Transform Fast Identification Fast Reconstruction Greedy Iteration High-frequency Radar Signal Integral Transforms in Numerical Analysis Interpolation And Function Approximation Iterative Method Numerical Analysis Radar Equipment Radar Receiver Radar Signal Processing Received Signal Reconstructed Signal Signal Processing And Detection Signal Reconstruction Signal Sampling Signal-level Redundant Dictionary Sparsity Dictionary System And Application Target Signal Traditional Receiver Wide-band Signal |
Content Type | Text |
Resource Type | Article |
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