modulations
英 [ˌmɒdjʊˈleɪʃənz]
美 [ˌmɑdʒəˈleɪʃənz]
网络 自然变化; 调制
双语例句
- 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。 - 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。 - Unlike other modulation classification algorithms, this one can identify analog and digital modulations at the same time.
不同于其他调制模式识别算法，该算法能同时识别模拟调制信号和数字调制信号。 - 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。 - 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。 - 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 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。 - Dual-Channel PolSK Optical Transmissions Using SOA-Based All-Optical Polarization Modulations
基于SOA全光偏振调制的双信道PolSK光传输系统 - 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。 - 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。