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| 宽带自相关接收机中的一种频率估计方法 | |
| 引用本文： | 王洪先,王玉军,王宏伟. 宽带自相关接收机中的一种频率估计方法[J]. 火控雷达技术, 2011, 40(1): 52-54,59 |
| 作者姓名： | 王洪先 王玉军 王宏伟 |
| 作者单位： | 1. 总装炮兵防空兵装备技术研究所,北京,100012 2. 空军工程大学,西安,710077 3. 西安电子科技大学西安710071 |
| 摘 要： | 在宽带自相关接收机中,自混频后的信号为正弦信号,本文提出了一种综合算法估计正弦信号的频率.综合算法仅需进行一次FFT和两点DFT运算,其运算量大大低于最大似然估计法,而估计性能却比粗略DFT算法好得多. |
| 关 键 词： | 调频连续波 自相关 |
A Frequency Estimation Method for Wideband Auto- Correlation Receiver |
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| Wang Hongxian,Wang Yujun,Wang Hongwei. A Frequency Estimation Method for Wideband Auto- Correlation Receiver[J]. Fire Control Radar Technology, 2011, 40(1): 52-54,59 | |
| Authors: | Wang Hongxian Wang Yujun Wang Hongwei |
| Affiliation: | 1.Research Institute of Artillery and Air Defense Equipment and Technology,General Armament Department,Beijing 100012;2.Airforce Engineering University,Xi′an 710077;3.Xidian University,Xi′an 710071) |
| Abstract: | In wideband auto-correlation receiver,signal after self-mixing is sine signal.A synthetic algorithm is proposed for sine signal frequency estimation.This algorithm needs only once fast Fourier transform(FFT) and two-point discrete Fourier transform(DFT),its computation load is much less than that of maximal likelihood estimation;while its performance is much better than coarse DFT algorithm. |
| Keywords: | FMCW auto-correlation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |