Frequency estimation of sinusiode from wideband using sub-Nyquist sampling |
| |
Authors: | Guangbin Zhang Hongyang Wang Guisheng Liao |
| |
Institution: | Key Laboratory for Radar Signal Processing, Xidian University, Xi'an 710071, China |
| |
Abstract: | A novel frequency estimation algorithm for wideband signal with sub-Nyquist sampling is proposed in this paper. With the aid of information provided by the auxiliary delayed sampling channel and the aliased frequency estimation for wideband signal with sub-Nyquist sampling, the frequency aliasing due to sub-Nyquist sampling can be solved. This method can reduce the complexity of the overall hardware at the cost of an auxiliary sampling channel. Furthermore, in order to alleviate the computation burden for its practicability, a more simplified algorithm is put forward and its validity is proved by our numerical simulation results. The Cramer-Rao Lower Bound (CRLB) of the frequency estimation is also derived at the end of this paper. |
| |
Keywords: | Wideband signal Sub-Nyquist sampling Frequency aliasing |
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录! |
| 点击此处可从《电子科学学刊(英文版)》浏览原始摘要信息 |
| 点击此处可从《电子科学学刊(英文版)》下载免费的PDF全文 |