modulations
英 [ˌmɒdjʊˈleɪʃənz]
美 [ˌmɑdʒəˈleɪʃənz]
网络 自然变化; 调制
双语例句
- Exact close-form expressions of the outage probability and error rate for the M-ary QAM and PSK modulations and the sum-rate capacity expression for arbitrary numbers of transmit and receive antennas are derived. The analytical results are verified through simulation results.
推导了采用多进制QAM和PSK调制的中断概率和误码率的表达式和渐近形式，以及针对任意数目发射和接收天线的总速率容量表达式，并通过仿真验证了理论分析的正确性。 - Modulations of control parameter on chemical bistable system is investigated by using of parameter modulation method.
采用调整控制参数的方法，实现对化学双稳行为的调制。 - This cellular stress response is designed to cope with a broad variety of temperature-dependent modulations of molecular structures, transport processes, chemical reactivities, and many more.
这种细胞的应急反应被设计成应对一系列的温度相关的分子结构调控、分子转运以及化学反应等等。 - 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。 - 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。 - 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。 - 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。 - 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； - 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。