A Distinguishing Method of the Ultrasonic Signal Waveform Starting Point

摘要：

　　According to the application of ultrasonic in wind speed,flow and liquid level measurement,a method about distinguishing ultrasonic signal waveform starting point was introduced.The high-powered DSP chip was chosen as the systems processor.The IIR band-pass digital filter was designed to eliminate disturbance.Marked change in fluctuation of ultrasonic signal sample was checked using the hypothesis testing to find the jumping off point of signal waveform.

关键词： ultrasonic digital filtering hypothesis testing DSP microprocessor

作者: Jiao Bing Chen Xiaoying Ye Song Wen Yating

作者单位: Institute of Meteorology PLA Univ. of Sci.& Tech. Nanjing, China, 211101

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer Application and System Modeling(2012第二届计算机应用与系统建模国际会议)(ICCASM-2012)

会议地点: 沈阳

会议语种:英文

页码: 972-975

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）