分析了石化企业中常见的排气放空噪声的原理及其影响因素，探讨了排气放空消声器的设计方法及技术要点。
This paper analyzed the causes and influence factors of the jet noise emerged from petroleum and chemical plants, and investigated design methods and main technique cruces of exhaust mufflers.
通过对通讯车辆噪声和振动特性的分析，介绍了在该车上进行的振动和噪声改进对比试验的试验方法及试验原理；
Through an analysis of noise and vibration characteristics, an experimental principle and method is introduced to eliminate the noise and vibration in communication automobiles.
本文对驻极体电容传声器的原理及噪声作了分析，这将有助于提高它的电特性。
The principle of electret condenser microphone and its noise are analyzed in the paper. It will be helpful to improve the electric specification.
介绍冷噪声源比对系统的工作原理，系统设计和采用的主要技术，系统误差分析及应用实例。
This paper introduces a comparison system of cold noise generator, mainly describes the operational principle, system design, basic method, error analysis of the system and the application examples.
针对波浪噪声特性，通过与传统去噪方式作比较，将小波分析去噪的优势、本质及原理进行了一一阐述。
In allusion to the character of the wave noise, with contrast to the old way to denoise, the advantage, essence and principle of the analysis based on wavelet for denoise are elaborated in detail.
结合“声学互易性原理”及车内噪声有限元分析，提出一种车内结构声源辨识的方法。
Combining with the reciprocity principle of acoustic system and the interior noise finite element analysis, an approach fo;
探讨了神经网络的弱信号检测方法，定性分析了其噪声抑制的原理，给出了神经网络系统框图及实测结果。
This paper inquires into detection method of micro weak signal in neural network, analyses principle of noise suppression, and gives out diagram and measurement results of neural network system.
探讨了神经网络的弱信号检测方法，定性分析了其噪声抑制的原理，给出了神经网络系统框图及实测结果。
This paper inquires into detection method of micro weak signal in neural network, analyses principle of noise suppression, and gives out diagram and measurement results of neural network system.
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