modulations
英 [ˌmɒdjʊˈleɪʃənz]
美 [ˌmɑdʒəˈleɪʃənz]
网络 自然变化; 调制
双语例句
- The redundant modulations of interference self-cancellation and time-domain windowing cause reductions in efficiency.
但是干扰自消除和时域加窗方法需要重复传送相同的信息，效率有所下降； - Computer simulations demonstrate that good performance of both modulations can be obtained at certain SNR within the given PSD constraint.
系统仿真表明，在满足给定发射信号功率谱衰减和一定的信噪比条件下，模拟AM广播和EBPSK数据传输都能获得良好的性能。 - In this dissertation, we mainly study adaptive serially concatenated systems with QAM and CPM modulations based on Turbo codes.
本文主要研究基于Turbo码的，分别利用QAM调制和CPM调制的自适应串行级联系统。 - The monotone in which he spoke was strangely soothing. It was the voice of a born orator, rich in possible modulations.
他说话的调子毫无抑扬顿挫，却有一种奇妙的镇静作用。这是一个天生演说家的富于抑扬顿挫的声音。 - There are two power/ signal frequency division composite modulations: PWM/ FSK modulation and PWM/ PSK modulation.
功率信号频分复合调制有两种基本方法：PWM/FSK调制和PWM/PSK调制。 - Because of limited frequency band of channel, spread spectrum and MFSK modulations can not resolve that high speed transmission is in contradiction with limited frequency band.
当进行高速水下通信时，由于水下信道的频带有限，扩频和MFSK调制方式无法解决高速率信息传输和可利用信道频带窄的矛盾。 - Different shapes of intensity distribution can be gotten by changing the parameters of radius, location, transmittance of amplitude modulations and spatial position, and the coherence length.
通过对振幅调制半径、调制位置、透射率以及空间位置和相干长度参数的改变，可以获得不同形状的光强分布。 - The influences of BER using different modulation techniques in the weak and strong fluctuation regimes on Wireless Optical Communication systems are discussed. The results show that the subcarrier BPSK modulation is superior to the OOK and subcarrier DPSK modulations in Wireless Optical Communication systems applications.
讨论了弱、强湍流下不同调制技术对误码率的影响，结果表明：副载波BPSK调制在光通信系统应用中较OOK和副载波DPSK调制更具优势。 - An Ultra-wideband Wireless Communication System Employing Cyclic Prefix and Pulse Modulations
采用脉冲调制和循环前缀的超宽带无线通信系统 - In this thesis, channel codes and modulations are also compared.
本文还对无线光通信的调制及信道编码方式进行了研究比较。