| 摘要: |
| 为了分析压缩感知宽带接收机的性能损失，明确其适用范围，设计了一种基于调制宽带转换器(MWC)结构的压缩感知宽带接收机，并针对该接收机的无杂散动态范围进行仿真分析和实验测量。仿真分析和实测结果表明，字典基之间非正交性将会导致接收机无杂散动态范围的严重损失，在1/2压缩采样率的条件下，接收机无杂散动态范围仅能达到7 dB左右，这将严重限制压缩感知宽带接收机在高动态范围要求环境下的应用。 |
| 关键词: 宽带接收机 压缩感知 字典基 无杂散动态范围分析 |
| DOI： |
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| 基金项目:中国博士后科学基金资助项目（2013M532238） |
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| Design and spurious-free dynamic range analysis of a compressed sensing wideband receiver |
| WANG Guiliang,LU Luxi |
| () |
| Abstract: |
| In order to analyze the performance loss and application of compressed sensing wideband receiver,the design detail of a compressed sensing receiver is provided based on modulated wideband converter(MWC) structure. Simulations and experiments are performed to measure the spurious-free dynamic range(SFDR) of the receiver. The result shows the large SFDR loss of the receiver caused by the non-orthogonality of dictionary atoms.When compressed at the ratio of 1/2,the SFDR of the compressed sensing wideband receiver is about 7 dB,which will severely limit its application in high dynamic range requirements. |
| Key words: wideband receiver compressed sensing dictionary atom spurious-free dynamic range analysis |
