Modulation ratio method的意思|示意

From signal to noise ratio analysis of the modulation signal, we choose the phase modulation method as the suitable carrier modulation for the twisted-pair.

本章首先分析了各种数字载波调制方法，从调制信号信噪比的角度分析说明基于相位调制的方法适合作为双绞线载波调制的方法。

A new digital modulation recognition method based on instantaneous information is proposed for the application under the low signal-to-noise ratio (SNR).

针对数字调制识别在低信噪比下的应用，提出一种新的基于瞬时信息的调制识别算法。

Numerical solution of differential equations method, Includes the modulation, demodulation, signal to noise ratio calculation, it draws on principal component analysis algorithm (PCA).

微分方程组数值解方法，包括调制，解调，信噪比计算，借鉴了主成分分析算法(PCA)。

A new calculation method of crossing-modulation-ratio is presented in this paper, the method is suitable for output level distribution of CATV network system under all conditions.

文中提出了一种新的交调比计算方法，适宜各种条件下的CATV联网系统在分配输出电平时使用。

A system was set up to test the modulation transfer function (MTF) of a photoelectric simulation system. The method used the ratio of magnitude of the output image to the input image.

建立了某光电仿真系统的调制传递函数(MTF)评测系统，系统采用频谱对比法测试了仿真系统的MTF。

By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.

通过采用时变调制比的方法，可以消除不对称输入电压的影响，从而获得对称正弦输出电压或输入电流。