| 参数稀疏信号非均匀采样性能分析 |
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| 引用本文： | 钱慧,余轮,郑海峰.参数稀疏信号非均匀采样性能分析[J].计算机与数字工程,2011,39(7):24-26,185. |
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| 作者姓名： | 钱慧 余轮 郑海峰 |
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| 作者单位： | 福州大学物理与信息工程学院 福州350108 |
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| 基金项目： | 福建省自然科学基金项目 |
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| 摘 要： | 提出了一种参数稀疏信号的时间交替周期非均匀采样方案。相对于非均匀采样，周期非均匀采样可以在降低系统复杂度的前提下依然保持较高的转换速率。通过仿真证明，非均匀采样样本的超分辨率特性可以提高非线性最小二乘周期图谱估计的重构性能。
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| 关 键 词： | 采样定理 稀疏采样 有限新息率 周期非均匀采样 狄拉克流 |
Performance Analysis of Parameters Sparse Signal Nonuniform Sampling |
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| Qian Hui,Yu Lun,Zheng Haifeng.Performance Analysis of Parameters Sparse Signal Nonuniform Sampling[J].Computer and Digital Engineering,2011,39(7):24-26,185. |
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| Authors: | Qian Hui Yu Lun Zheng Haifeng |
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| Affiliation: | Qian Hui Yu Lun Zheng Haifeng (College of Physics and Information Engineering,Fuzhou University,Fuzhou 350108) |
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| Abstract: | The time interleaved periodic nonuniform approach is proposed for parameters sparse sampling signal. With relative to uniform sampling model, the periodic nonuniform sampling approach would be to reduce the complexity of the ADC device and keep higher rates of conversion. The simulation result shows, the Super-resolution characteristic of nonuniform samples can improve the reconstruction ability of Nonlinear Least square periodogram spectral estimation. |
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| Keywords: | sampling theory sparse sampling finite innovation rate periodic nonuniform sampling Diracs stream |
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