调制度(Modulation Index)是用来描述调制信号对载频信号影响大小的参数,可以通过以下方法计算: 1.计算载频信号的振幅(Ac)和调制信号的最大峰-峰值(Am):Am为调制信号在峰值和谷值之间的差值。 2.计算调制度(m):调制度等于调制信号的最大峰-峰值与载频信号振幅的比值,即m=Am/Ac。 四、调制度的意义和作用 调制...
调幅的过程可以通过幅度调制指数(ModulationIndex)来表示。调幅信号的数学表达式如下: \(V_{AM}=(A_c+A_msin(2\pif_mt))sin(2\pif_ct)\) 其中,\(V_{AM}\)是调幅信号的值,\(A_c\)是载波的振幅,\(A_m\)是调制信号的振幅,\(f_m\)是调制信号的频率,\(f_c\)是载波的频率,\(t\)是时间。
调幅原理AM
PURPOSE:To make easy the variable modulation index, by branching the carrier into two waves different in the phase by 180 deg. and changing the impedance of either one wave of the synthesizing circuit by means of the base band signal in the combination of the circuit synthesizing it. ...
Modulation Index = M/A Where, M is the amplitude of the message signal A is the amplitude of the carrier signal Or Modulation index = Am/Ac Efficiency of AM The efficiency of Amplitude Modulation is defined as the ratio of sideband power to the total power. ...
7.Amplitude modulation index estimation of AM-FM signal scattered from micro-motion target微动目标AM-FM信号调幅指数估计方法 8.AM Demodulation Based on High Efficiency New Morphological Filtering Algorithm基于高效形态滤波新算法的AM解调 9.AM Demodulation Based on Morphological Filtering Algorithm软件无线电中...
공유 MATLAB Online에서 열기 다운로드 AM 인용 양식 Ashish Verma (2024).AM modulation with asking modulation index(https://www.mathworks.com/matlabcentral/fileexchange/114525-am-modulation-with-asking-modulation-index), MATLAB Central File Exchange. 검색 날짜:2024/12...
调幅AM与调频FM-东海大学
modulation_index = A / max(abs(m)); disp(['AM信号的调制度为,', num2str(modulation_index)]); 通过以上代码,我们可以计算出AM信号的调制度。调制度的数值可以帮助我们评估调制信号的幅度变化程度,从而对通信系统的性能进行分析和优化。 在实际的通信系统设计中,了解和计算调制度是非常重要的。通过使用MATLAB...
Modulation Index and AM depth are one and the same. Look at this Wikipedia entry:http://en....