time-frequency modulation的意思|示意

It is made clear through the theoretical analysis that the frequency shift is dependent on the modulation frequency, thermal time constant, bias current of the laser diode and so on.

理论分析表明频移幅度与调制频率、时间常数和半导体激光器的偏置电流等物理量有关。

In wireless technology, collision occurs when two transmitters transmit at the same time with the same modulation scheme on the same frequency.

在无线技术中，冲突发生在两个发射器在相同的时间、相同的频率发送相同的调制方式。

This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation, at the same time the results are given.

本文对双极性调制的无刷直流电动机仿真分析了转速和调制频率对转矩影响同时给出仿真结果。

This radar use FMICW signals, time synchronization consists of pulse synchronization and frequency-modulation synchronization.

该雷达采用调频中断连续波(FMICW)信号，时间同步包括调制脉冲的同步和调制频率的同步。

Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.

为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。

Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.

基于OFDM(正交频分复用)系统，提出了一种新的空频时三维编码，将网格编码调制和差分空时分组码进行组合链接设计。