modulation是什么意思？

modulation

例句

• Orthogonal frequency division multiplexing ( OFDM ) is a multi - carrier modulation method . 正交频 分多路 复用是一种 多载波调制 技术.
• OFDM is a type of modulation is called orthogonal frequency division multiplexing. OFDM是一种新型的调制方式,称为正交频分复用.
• The soft modulation of her voice soothed the infant. 她柔和的声调使婴儿安静了.
• The Frequency Shift Keying modulation is widely used in HF digital communication. 移频键控是短波数字通信中常用的一种调制方式.
• The famine turned the normal modulation of climate into disaster. 正常的气候变化因饥荒而成了灾难。
• However, the modulation - demodulation of ultraviolet and voice transmission are the key technologies. 然而, 紫外光通信的 调制解调技术 以及语音传输是整个系统的关键难点.
• Modulations of control parameter on chemical bistable system is investigated by using of parameter modulation method. 采用调整控制参数的方法,实现对化学双稳行为的调制.