modulations
英 [ˌmɒdjʊˈleɪʃənz]
美 [ˌmɑdʒəˈleɪʃənz]
网络 自然变化; 调制
双语例句
- 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。 - As usual, there are amplitude modulations and phase fluctuations in real high-power lasers.
实际的高功率激光通常都有振幅调制和相位畸变。 - 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。 - Eigenvalue results show that: using HVDC rapid modulations can improve the system damping effectively.
特征值计算结果表明：利用直流快速的调制功能可以有效提高交直流并行输电系统的阻尼，抑制区间低频振荡。 - Using different frequency domain equalization algorithms and modulations, the SC-FDMA system performance is analysised in this paper.
结合不同频域均衡和调制方式，仿真分析SC-FDMA系统性能。 - Studies on the Mechanisms of Proton and Electron Transport and Their Modulations in Biological Molecules
生物分子荷质传递机理及其调控的理论研究 - 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。 - 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。 - 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。 - 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。