modulations
英 [ˌmɒdjʊˈleɪʃənz]
美 [ˌmɑdʒəˈleɪʃənz]
网络 自然变化; 调制
双语例句
- 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。 - Research of modern satellite communication modulations techniques and satellite TCP
现代卫星通信中的调制技术和卫星TCP的研究 - 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。 - This controller integrates pulse width modulation ( PWM) and pulse density modulation ( PDM) together, and can easily change between the two modulations.
该设计集成了脉冲宽度调制（PWM）和脉冲密度调制（PDM）两种调制方式，并可以在两者间切换。 - 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。 - 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。 - 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 - 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。 - By combining intra-pulse phase and inter-pulse frequency modulations, PCSF enabled larger frequency step sizes than SF.
它将SF信号的矩形子脉冲替换为相位编码子脉冲串，通过脉内相位和脉间频率两次调制，获得了更大的频率步进量。 - 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。