| 一种快速测频的方法 |
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| 引用本文： | 钟洪声,周国勇,肖先赐.一种快速测频的方法[J].电子科技大学学报（自然科学版）,2006,35(1):40-42,46. |
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| 作者姓名： | 钟洪声 周国勇 肖先赐 |
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| 作者单位： | 1.电子科技大学电子工程学院 成都 610054 |
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| 摘 要： | 介绍了一种利用信号变换处理提高数字接收机测频速度的方法,并对其测频原理进行理论分析和仿真、FPGA实现。在实际应用中,该方法可用加法器替代乘法器,因此大幅减少了计算量。同时,还对该方法的性能进行了分析,就标准偏差指标对比了Prony法和FFT法,表明其抗干扰能力也比较强,说明了该方法有一定的理论和实际价值。
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| 关 键 词： | 快速测频 快速傅里叶变换 FPGA实现 MATLAB工具 标准差 |
| 收稿时间： | 2004-06-17 |
| 修稿时间： | 2004-06-17 |
A Fast Frequency Estimation Method |
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| ZHONG Hong-sheng,ZHOU Guo-yong,XIAO Xian-ci.A Fast Frequency Estimation Method[J].Journal of University of Electronic Science and Technology of China,2006,35(1):40-42,46. |
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| Authors: | ZHONG Hong-sheng ZHOU Guo-yong XIAO Xian-ci |
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| Affiliation: | 1.School of Electronic Engineering,UEST of China Chengdu 610054 |
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| Abstract: | A method is proposed to realize fast frequency estimation by using signal transform. This method can improve the speed of frequency estimation in digital receivers. Theoretical analyses on the principle, simulation results and the experiment on FPGA are given. The additions are applied instead of the multipliers in this method, so the time of calculating operation is shorter. The Standard Deviation of the method is analyzed and compared with the methods of Prony and FFT, The results show that the method and its performance is better tham other methods is feasible. |
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| Keywords: | fast frequency estimation FFT FPGA MATLAB standard deviation |
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