PURPOSE:To output a modulated wave with a modulation index N by a frequency-modulating driver and to improve the efficiency of an oscillator by switching the amplitude of a frequency-modulated driving signal to N times as large as that in the case of a modulation index. CONSTITUTION:A ...
modulation index 调制指数 index of modulation 调制系数 frequency modulation index (FM index) 调频指数 phase modulation index 调相指数 choke modulation 抗流圈调制,扼流圈调制 collector modulation 集电极调幅,集电极调制 base modulation 基极调幅,基极调制 absorptive modulation 吸收调制 deflection modul...
In FM it is not so simple. FM signal spectrum is quite complex and will have an infinite number of sidebands as shown in the figure.This figure gives an idea, how the spectrum expands as the modulation index increases. Sidebands are separated from the carrier by fc ± fm, fc ± 2fm,...
where the phase modulation index is given by m p = K p V m . In the following analysis, the FM signal of (3) and the PM signal of (5) are assumed to have a common expression as ()t t V v v m c c pm fm ωβωsin cos +== (6)where the FM/PM index is β. If ...
调制指数Modulation Index指的就是公式中d/f_m*sin(2πf_mt)的最大值,这里也就是 d/f_m=> Modulation Index 最大频偏 peak frequency deviation就对应 d d => ∆f ⚠️注意,最大频偏∆f 其实和调制信号的频率没有关系,而在 ∆f 保持不变的情况下,Modulation Index 和调制信号的频率f_m成反比...
The interesting thing about FM is that as the modulation index is increased, the number of sidebands increases then the carrier or sidebands can completely disappear in a known sequence. In frequency modulation, the modulating signal changes the frequency of the carrier. The amplitude of the ...
frequency modulation index (FM index) 调频指数相关短语 microseme (眼眶指数在84以下) 小眼型的 mesatikerkic (肱桡指数在75 80之间) 中等肱桡指数的 Harvard ABC curve (三项指数曲线) 哈佛ABC曲线 mesuramic (上颌牙槽指数在110 115之间) 中型腭的 biquinary representation (数的) 二五混合进制表示 sagitta...
MATLAB Online에서 열기 다운로드 The code for frequency modulation (FM) with control of modulation index (mf) has been developed using MATLAB according to conventional theory 인용 양식 Md. Salim Raza (2025).MATLAB code for Frequency Modulation (FM)(https://www.mathworks.co...
The dependence of the capture effect the modulation index adopted for the start signal is examined. Although the theory assumes infinite-bandwidth discriminators in the traffic-information receivers, the results of brief experiments are described which confirm that a discriminator bandwidth approximately ...
Modulation index: It is given by the expression: Frequency deviation/Modulating frequency =∆f/fm. Deviation Ratio:In the modulation index equation if we allow max frequency deviation and max modulating frequency then it become “Deviation