modulation

英 [ˌmɒdjʊˈleɪʃən]

美 [ˌmɑdʒəˈleɪʃən]

n.  调制；调谐；变调；缓和

复数：modulations　

计算机

BNC.16953 / COCA.19940

柯林斯词典

• VERB 改变，调节(嗓音或声音)
  If youmodulateyour voice or a sound, you change or vary its loudness, pitch, or tone in order to create a particular effect.
  1. He carefully modulated his voice.
     他小心地压低了声音。
• VERB 调节;调整
  Tomodulatean activity or process means to alter it so that it is more suitable for a particular situation.
  1. These chemicals modulate the effect of potassium.
     这些化学物质可以调节钾的功效。

英英释义

noun

• the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect)
• (electronics) the transmission of a signal by using it to vary a carrier wave
• a manner of speaking in which the loudness or pitch or tone of the voice is modified
  Synonym:inflection
• rise and fall of the voice pitch
  Synonym:intonationpitch contour
• a musical passage moving from one key to another
  Synonym:transition

双语例句

• The feasibility of DC modulation technology application in the Northwest China grid was studied in this paper.
  对直流调制技术在西北电网应用的可行性进行了研究。
• This thesis firstly introduce the function, performance index and operation principle of the wireless interphone of frequency modulation.
  首先介绍了调频无线对讲机的功能、性能指标和工作原理。
• We theoretically analyze and experimentally demonstrate a method of generating equal-amplitude optical comb exploiting multi-frequency phase modulation.
  我们理论分析并实验验证了一种利用多频相位调制产生等振幅光梳的方法。
• Finally, the smoothing of BPSK modulation, and optimization of its performance are performed.
  最后提出了平滑化BPSK调制，优化了性能。
• Differing from frequency error track, it avoid spurious modulation and complexity caused by phase-locked loops.
  与频率误差跟踪不同，它避免了锁相环引入的寄生调制和复杂性。
• The modulation parameter estimation of LFM signal and MPSK signal was studied.
  研究了线性调频信号、相位编码信号的调制参数识别问题。
• SC-FDMA is a technology using single-carrier modulation and frequency-domain equalization, has the property of low PAPR.
  而SC-FDMA（单载波频分多址）是一种使用单载波调制和频域均衡的技术，具有低PAPR这一显著特性。
• In pulse code modulation, a basic group of channels assembled by time division multiplexing.
  在脉码调制技术中，通过时分多路器而组合在一起的一种信道基本群。
• This paper proposed a modulation recognition algorithm for M-QAM signals.
  提出了一种M-QAM信号的识别算法。
• This thesis studies and designs a wireless interphone of frequency modulation.
  本论文研究设计了一款调频无线对讲机。