noise threshold

In this range finder, an automatic noise threshold control circuit is used to automatically control average noise pulse firing rate. Such that a constant average noise pulse firing rate is obtained.

测距仪采用自动噪声电平控制电路动态控制噪声脉冲的平均发生率，使系统获得稳定的平均噪声脉冲发生率；

As you all know, the normal noise threshold for private housing is 55 decibels.

正如你们知道的, 个人房子正常噪音为55分贝.

Use the computer simulation technology to simulate the automatic noise threshold, the experimental and theoretical calculation, it designed a optimal threshold circuit under different working environment.

利用了计算机仿真技术对噪声自动阈值进行仿真，经实验和理论计算，设计出不同工作环境下最佳阈值电路。

According to these, we finally establish mathematical models of HVS noise threshold and IQS based on CCIR five-point quality scale.

在此基础上，建立了基于CCIR五级质量标准的HVS噪声阈值数学模型和IQS数学模型。