英文: Abstract: In this paper the main noise source
of SQ6450 type light car was judged by means of spectrum and correlation analysis of noise signal.The corresponding proposal reducing noise was presented.
英文: Abstract: This paper first discusses the optimum method of feature choice in the fuzzy recognition of tank under the condition of different noise source
interference.Then,through quantitative analysis of the peak features of power spectrum and auto-correl
中文: 文摘:对不同声源干扰条件下坦克识别的特征优选方法进行了深入的研究和探讨，在此基础上，通过双谱谱峰特征的定量分析，对多源干扰时的坦克识别效果进行了分析对比，得出了有益的结论。 更详细...
英文: Based upon discussion on the way of noise propagation in internal combustion engine, a variety of methods for noise source
identification and some of new technology occurred in this field in recent years are expounded with emphases in this paper.
英文: By means of measurement and analysis of noise near certain asphalt-spreader's driver's ear and near-field noise of main noise source
s, the noise source
whose contributions to noise near driver's ear was rather strong was identified.
英文: It is an important content of construction ecological campus to raise sound environmental quality, through monitoring for the campus regional present situation of noise pollution and analysis, find out the major noise source
that affects the area of campu