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摘要:
Analog-to-Information Converter (AIC) based on Compressive Sensing (CS) broke the bottleneck of traditional sampling theorem. The required data is much less than the amount of data acquired by the Nyquist sampling. However, algorithms implemented in software inhibited timely decisions and prevents the use of adaptive sensing strategies. Therefore, it is necessary to achieve hardware acceleration. In this paper, we mainly proposed the complex-valued system of the signal reconstruction for the CS-based AIC structure. In order to achieve high performance and high speed hardware, we propose a superior design for inversion based on Goldschmidt algorithm. This design can double the speed of division than previous works. In addition, we have completed the functionalities on the Xilinx Virtex5 FPGA. The implementation results showed that the Orthogonal Matching Pursuit (OMP) algorithm achieved a recovery signal-to-noise-ratio (RSNR) of 21.15 dB with the clock frequency of 130.4 MHZ. © 2017 IEEE.
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ISSN: 2162-7541
年份: 2017
卷: 2017-October
页码: 152-155
语种: 英文
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