| 基于欠采样的宽频段信号频率估计技术 |
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| 引用本文： | 黄佑勇,王激扬,陈天麒.基于欠采样的宽频段信号频率估计技术[J].电波科学学报,2001,16(2):275-279. |
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| 作者姓名： | 黄佑勇 王激扬 陈天麒 |
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| 作者单位： | 电子科技大学电子工程学院702教研室 , |
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| 摘 要： | 对基于欠采样的单阵元输出宽频段多信号频率估计提出了一种算法。为正确解由于欠采样所导致的频率混迭，需要对单阵元输出的信号延时延成构成通道。求解频率所用的子空间类算法PRO－ESPRIT，保证了算法只需要较小的运算时，计算机模拟结果，频率估计离差接近CRB。
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| 关 键 词： | 欠采样 频率估计 解模糊 宽频段信号 |
| 文章编号： | 1005-0388(2001)02-0275-05 |
Wide-band frequency estimation with sub-Nyquist sampling |
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| HUANG You-yong,WANG Ji-yang,CHEN Tian-qi.Wide-band frequency estimation with sub-Nyquist sampling[J].Chinese Journal of Radio Science,2001,16(2):275-279. |
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| Authors: | HUANG You-yong WANG Ji-yang CHEN Tian-qi |
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| Abstract: | A new method for wide-band frequency estimation with sub-Nyquist sampling was proposed. With a time-delay channel, the aliased frequencies could be estimated without ambiguity. Using Pro-ESPRIT, the algorithm needed moderate calculations. The computer simulations are presented, that show the STD of frequency estimation is very close to the CRB. |
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| Keywords: | sub-Nyquist sampling estimation of frequencies resolve frequency aliasing |
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