In order to improve the efficiency of on-the-spot test and accuracy of the data, the authors proposed a new method to set up virtual noise sources based on the noise decay principle.
为了提高现场测试的效率和数据的准确度，该文提出了一种基于噪声衰减原理而建立虚拟噪声源的方法。
AIM To investigate the method of decreasing the noise disturbance in electrocardiosignal and improve the test precision of RR interval in heart rate variability HRV signals.
目的：探讨改善心电信号噪声干扰的方法，提高对心率变异信号中的RR间期检测精度。
Finally the application of the new modeling method to model test of cavitation and noise of propeller working behind is discussed.
最后讨论了新模拟方法在船后螺旋桨空泡与噪声模型试验中的应用。
In this paper, it is proposed that the circuit design, test method and the typical application of a kind of power noise filter.
文中介绍电源噪声滤波器的电路设计、测试方法及典型应用。
Studies the measurement of low frequency radiation noise from an underwater target by a vector hydrophone, discusses the method of measurement and presents the test results in the sea.
研究利用矢量水听器测量水下目标低频辐射噪声的问题，并给出了测量方法和海上试验结果。
For the sake of the noise control of automotive noise, an improved method is presented through some muffler of a subminiature truck tests on an engine test bed.
以控制汽车加速噪声为背景，通过对某微型卡车排气消声器的测试分析结果，提出相应的改进措施。
This paper introduces the method of reducing noise and test effect of sympathetic sound absorber assembled at the wind tongue of fan.
介绍了在离心式风机的蜗舌处安装共振吸声器降噪的方法及实验效果。
The result of test shows that the new method works well in real-time, restraining noise and background image, maintaining object image detail.
实验结果表明该方法实时性好，抑制了噪声和背景信息的同时保持了目标细节信息。
In this paper the separation method of combustion noise and mechanical noise, the identification technique of engine noise sources and the engine structure test were discussed.
本文讨论了柴油机燃烧噪声和机械噪声的分离方法；阐述了声源识别技术和发动机结构试验。
The application of this method in the flight test noise data processing shows that the method has a good effect in the processing data with nonlinear properties and other complex distributions.
将其应用于含有大量测量噪声的试飞数据处理中，应用结果表明，该方法对非线性和复杂分布的过程数据有很好的处理效果。
It is an effective method to reduce the noise in signal by wavelet, and proper parameters are selected to reduce the noise in test signal of BJ2020S road-off jeep in this paper.
利用小波良好的去噪性能，选择了合适的参数对越野吉普车BJ2020S实验测量信号进行小波去噪。
It is an effective method to reduce the noise in signal by wavelet, and proper parameters are selected to reduce the noise in test signal of BJ2020S road-off jeep in this paper.
利用小波良好的去噪性能，选择了合适的参数对越野吉普车BJ2020S实验测量信号进行小波去噪。
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