| 一种基于时间梳技术的高频正弦信号幅值测量方法 |
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| 引用本文： | 郑胜峰,陈学磊,王本轶.一种基于时间梳技术的高频正弦信号幅值测量方法[J].宇航计测技术,2015,35(5):45. |
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| 作者姓名： | 郑胜峰 陈学磊 王本轶 |
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| 作者单位： | 1、浙江工贸职业技术学院 电子系，浙江温州 325000 |
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| 基金项目： | 浙江工贸职业技术学院教师科技创新项目(G150110) |
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| 摘 要： | 本文研究了一种基于时间梳原理的高频正弦信号幅值测量方法，介绍了时间梳原理并详细分析了其特点，并将此原理应用于高频信号的幅值测量中，可以在不满足乃奎斯特采样定理的条件下，用低于被测信号的频率对被测高频信号进行同步采样，避免了高频信号采样的高采样率，结合自相关和多重自相关技术，实现了对高频正弦信号的幅值的准确测量，实验结果表明本文算法对高频信号的幅值测量具有很高的测量准确度，尤其在低信噪比下也有较高的测量准确度，具有较高的工程实用价值。
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| 关 键 词： | 时间梳技术 等效采样 幅值测量 |
A New Method of Amplitude Measurement of High Frequency Sinusoidal Signal based on Time Comb Technology |
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| ZHENG Sheng-feng,CHEN Xue-lei,WANG Ben-yi.A New Method of Amplitude Measurement of High Frequency Sinusoidal Signal based on Time Comb Technology[J].Journal of Astronautic Metrology and Measurement,2015,35(5):45. |
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| Authors: | ZHENG Sheng-feng CHEN Xue-lei WANG Ben-yi |
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| Institution: | 1、Zhejiang Industry & Trade Vocational College, Department of Electronical engineering， Wenzhou, Zhejiang 325000 |
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| Abstract: | A new method for amplitude measurement based on time comb technology is introduced in this paper. The principle of time comb is given, and its characteristic is analyzed .The principle is used in data acquisition of high frequency. Equivalent sampling technology is abstained，avoiding high sampling frequency and combined with autocorrelation and multilayer autocorrelation technology，Then amplitude is detected when the Nyquist sampling theorem is not satisfied. Simulation results shows that the high resolution for high frequency signals especially in low signal noise ratio condition. |
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| Keywords: | Time comb technology Equivalent sampling Amplitude measurement |
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