A Threshold-Based Approach for Acoustic Signal Processing
A processing approach based on thresholding is provided for acoustic signal of bombs/shells and is used in positioning system of bombs/shells explosion. It applies three steps Low-pass filtering, moving average and Normalization to process digital signal and takes strategies of the maximal wave crest, the earliest wave crests and joint detection with sensors for time extracting. Acoustic signal was analyzed and processed in positioning system to extract the features and explosion time of the acoustic signal. The precision of the time directly affects the accuracy of the calculated point of impact. The experimental results show that the method is practical in point of impact detecting system and satisfies the military training.
Falling points of Bombs/Shells Digital Signal Processing (DSP) Threshold Filtering
Dongming Chen Zhiliang Zhu
Software College of Northeastern University, Shenyang 110004, China
国际会议
The 22nd China Control and Decision Conference(2010年中国控制与决策会议)
徐州
英文
1039-1042
2010-05-26（万方平台首次上网日期，不代表论文的发表时间）