modulations
英 [ˌmɒdjʊˈleɪʃənz]
美 [ˌmɑdʒəˈleɪʃənz]
网络 自然变化; 调制
双语例句
- 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。 - 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。 - 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 - 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； - Since wavelet bases as cipher keys are infinite and could be hopped to chose based on different channels, fractal modulations security and the ability of anti-dawning are emphatically expound.
由于作为密钥的小波基任意多，且可根据信道情况在不同的小波基之间跳变，故分形调制具有极强的保密性和抗破译能力。 - Turbulence modulations caused by change of particle size and particle mass loading ratio
颗粒粒径和气载比改变时湍流调制的变化 - 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。 - 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。 - Focus on the research of the sine wave magneto-optical modulation& frequency multiplication method, and analyze the precision of this method. ( 4) Compare and summarize simulations of the rectangular wave and other wave magneto-optical modulations.
重点对正弦波磁光调制&倍频法进行了实验研究，并对其精度做了一定的分析。 - 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。