noise intensity

Although the enhancement of noise intensity is able to widen the low frequency district, this wideness is very limited and quite difficult to choose the input signal to reach SR.

虽然增大噪声强度可以扩展低频能量区域，但这种扩展不仅非常有限，而且很难重新选择到信号使之达到随机共振。

[ Methods] Instant monitoring and equivalent continuous A-weighted sound pressure level monitoring were applied to monitor the noise intensity in 3 workplaces with incontinuous and unstable noise.

方法选择有噪声作业的3个场所，且噪声是不连续、非稳态噪声，分别用瞬时测定方法和等效连续A声级测定方法对噪声强度进行测定。

The qualified rate of wood dust concentration was 58.4%, while methyl benzene was 84.5% and noise intensity was 68.5%.

木尘和甲苯的浓度及噪声强度的合格率分别为58.4%、84.5%和68.5%；

The conclusion was verified by simulation signals with different noise intensity and rolling bearing's defect vibration signal. Analysis shows that the proposed method is more effective than direct modulation or time delayed autocorrelation demodulation in denoising or clarifying modulation information.

不同噪声强度仿真数据和滚动轴承故障振动信号实验数据分析表明，该方法比直接解调或仅采用时延相关解调更能有效抑制噪声，凸现信号调制信息。

And the detection on binary aperiodic signals based on the piecewise linear model, we found that through an appropriate adjustment to the noise intensity and system parameters, there is an optimum value can be achieved for non-periodic signal detection.

对含噪声二进制非周期信号进行检测，发现适当调节噪声强度和系统参数，同样存在一个最佳值可以实现对非周期信号的检测。