超声测距 meaning in English
super sonic sounding
Examples
- Thirdly , analyzes the math characteristic and the math model of ultrasonic sensor . for overcoming its uncertainty , by investigating the working mechanism and characteristic of sonar , a sonar data filtering method is presented
针对超声传感器存在的不确定性，在深入分析超声测距工作机理和工作特性的基础上，采用一种超声数据滤波的方法，以克服超声测距的不确定性。 - In the second part , the new method is compared with the old one in such aspects as system structure and signal processing methods . in the third part , the properties of dsss and lfm systems , especially the echo signal correlation processing of the systems are discussed . the last part are the respective analyses of water - pipe simulation experiment results and the trial results in zhong yuan oil field
本文首先介绍了超声测距的基本原理，分析了信道的声传输特性；接着将传统液位测量方法和新型液位测量方法的系统构成和信号分析处理方法做比较；然后对系统的发射信号(直接序列扩频信号和线性调频信号)的特点进行了研究，并着重讨论了回波信号的相关处理；最后对水管模拟实验测量结果和油田实地测量结果分别进行了分析和讨论。