| 基于相位分析的超声波噪声信号抑制算法 |
| |
| 引用本文： | 彭瑾,王黎,高晓蓉,王泽勇.基于相位分析的超声波噪声信号抑制算法[J].铁道技术监督,2009,37(1):34-37. |
| |
| 作者姓名： | 彭瑾 王黎 高晓蓉 王泽勇 |
| |
| 作者单位： | 西南交通大学理学院,四川成都,610031 |
| |
| 摘 要： | 针对超声波射频（简称RF）信号的特点，确定了一种基于离散傅立叶变换（简称DFT）加窗的相位分析方法。经过对超声波RF信号相位信息的分析，提取出2路超声波信号相位信息，再解析测量误差，提出解决办法。通过噪声抑制算法应用，给出仿真结果及应用实例。
|
| 关 键 词： | 超声波信号 相位差测量 噪声抑制 |
Ultrasonic Noise Suppression Algorithm Based on Phase Analysis |
| |
| Abstract: | In this paper, in accordance with the characteristics of ultrasonic RF signal, a kind of adding-window Phase Analysis Method based on DFT is proposed. Meanwhile, by analyzing the phase information of ultrasonic RF signal, a pair of ultrasonic signal phase information are extracted, and then the measurement error is analyzed and for noise suppression algorithm is done and the simulation re.. the solutions are proposed. Finally, the application suits and applocation examples are given as well. |
| |
| Keywords: | Ultrasonic Signal： Phase Difference Measurement Noise Suppression |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
