频率调制:根据语音或信号调制载波波的频率,也称为FM。
frequency modulation //
→ compareamplitude modulation
modulation of the frequency of the (radio) carrier wave
同义词: FM
调频-引用次数:243
参考来源运动平台上多基地雷达时间同步技术
频率调制-引用次数:73
Because the frequency modulation isn’t sensitive with the change of the phase, it can overcome the swift of phase and fading of energy which is caused by water channel.
利用频率调制本身对于相位变换不敏感的特性,抑制了水声信道中多途效应引起的相位偏移以及能量衰减。
变频-引用次数:18
高频调制-引用次数:9
频率灯
频
调频-引用次数:55
频率调制-引用次数:7
Pulse width modulation, frequency modulation as wel as phase modulation are simulated by the system model. These modulating methods are analyzed and their correlation results are compared.5.
4.基于ARMA系统模型对脉冲宽度调制、频率调制和相位调制等方法进行仿真,分析了三种调制方式的传输特性,并比较了各自的相关结果。
参考来源无串扰超声测距系统建模与仿真
振频调节-引用次数:2
调频
频率调变
调频
频率调制(Frequency Modulation)是一种根据基带信号的变化,改变载波频 率的调制方式,通过载波不同的频率来表达不同的信息。
...业余电台、太空、人造卫星通讯应用的波段,也有采用调频(FM)方式的。 FM radio即为调频收音机。 调频(frequency modulation,缩写:FM)是一种以载波的瞬时频率变化来表示信息的调制方式。
100个人,估计有99个半都会告诉你是调频广播(Frequency Modulation)的缩写。其实,FM还代表一种足球文化。
... free space 自由空间 frequency modulation 频率灯 ft 傅里叶变换 ...
Frequency modulation is not possible with polychromatic light.
多色光不可能调制频率。
Therefore, the tuner is essential to the frequency modulation radio.
所以调频收音机中的频率调谐器是至关重要的。
The application of the variode in frequency modulation circuit are discussed.
讨论变容二极管在调频电路中的应用。
AM radio can be sent over larger distances, but the quality of the sound is not as good as a later kind of radio signal processing, called frequency modulation.
VOA : special.2010.12.08
One problem is "spectrum incompatibility" among myriad broadband designs--T1, ISDN and nine or so flavors of DSL. Their signals move along copper wire in overlapping frequency and modulation schemes.