脉宽调制效率最高的电子速度控制。
Pulse Width Modulation electronic speed control for highest efficiency.
结果表明，作为调制通道的导模阶数越低，调制效率越高。
Results show that the lower guide mode acting as the modulation channel is, the larger modulation index can be obtained.
正交幅度调制(QAM)具有较高的调制效率，被广泛应用于各种数字通信系统中。
QAM (Quadrature Amplitude modulation) has been widely used in various digital communication systems due to its high modulation efficiency.
通过优化设计与分析发现适当降低波导芯层的尺寸可以弥补因包层调制引起的调制效率的下降。
Also, optimizing design and analysis showed that the decrease of modulation efficiency due to modulating in claddings can be compensated by appropriately reducing the size of cores.
本文讨论了调幅系数为任意值的调幅波，给出了它的表达式、频谱及调幅系数、调制效率和信噪比增益的计算公式。
The amplitude modulated wave with any modulation factor is discussed in this paper. Its expression, spectrum and formula of the modulation factor, modulation efficiency, SNR gain are given.
轮廓调制结合了一种相位调制信号的波形和放大器的输出阻抗，可在某个较大型输出电源关闭后保持更高的效率。
Contour modulation is a technique in which a phase-modulated signal waveform and amplifier output impedance work together to maintain higher efficiency over a sizable output power back-off.
当电源调制和轮廓调制协同工作时，功率放大器的动态范围和效率可以进一步提高。
When supply modulation and contour modulation are working in concert, the dynamic range and efficiency of the power amplifier can be further improved.
将顶层阁楼与下面的房子进行隔热，将门窗漏风处都堵好，如果这些措施得当，将会大大地提高空调制冷与制热系统的工作效率。
Properly insulating your attic and sealing any leaks under doors or around windows, will greatly improve the effectiveness & efficiency of your both cooling AND heating systems.
这种挑战使得人们努力开发高效的编码、调制以及信号处理技术来提高无线频率的效率。
It spurs us to develop highly efficient coding, modulation and signal processing techniques to improve the wireless frequency spectrum efficiency.
信息传输的带宽效率一直为人们所关注，对高效调制技术的探索具有重大的现实意义。
Much attention is always paid to bandwidth efficiency in transmission, so it has an important meaning to explore in high efficiency modulations.
联合频率相位调制(JFPM)同时利用频率信息及相位信息，具有较高的频带利用率和功率效率。
Joint frequency and phase modulation (JFPM) utilize frequency and phase information to realize higher efficiency in the frequency and power.
对阿基米德螺旋线调制斩波器的曝光效率进行了理论分析和数值模拟，得到斩波器曝光效率对后续信号处理的影响。
The Archimedes spiral cord modulating chopper's exposure efficiency was theoretically analyzed and numerical simulated, and its impact on the following signal processing was obtained.
文中讨论了以MSK调制技术结合预调滤波器提高带宽效率的系统构建方案。
To increase the bandwidth efficiency, such a system scheme use the MSK modulation method combining with a premodulation filter.
控制器：最高效率脉宽调制电子调速器。
Controller: Pulse Width Modulation electronic speed control for highest efficiency.
在少模光纤的LP03模截止且LP02导通的参数范围内，计算了调制深度和耦合效率与少模光纤参数的关系。
Modulation depth and coupling efficiency were calculated in the range where LP03 mode are cut-off and LP02 mode are guided.
调制技术对数据传输效率有重要的意义。
Modulation technique is very meaningful for the digital data transmission efficiency.
另一方面，对于MIMO - OFDM系统来说，自适应调制技术可以提高系统的数据传输率、频谱效率以及传输的可靠性。
On the other hand, adaptive modulation technique can enhance data rate, spectrum efficiency and transmission reliability in MIMO-OFDM systems.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
FQPS K是针对高频谱效率和高功率效率要求产生的一种调制方式。
FQPSK is a modulation technique that fits for high spectrum efficiency and high power efficiency request.
这类开关电源的效率比常规的脉冲宽度调制（PWM）高，且基本上与负载无关；
The device has a higher efficiency than the conventional switching power supply with PWM, and it is almost load-independent.
双空间矢量调制两级协调控制能实现整流级零电流换流，极大地减少了开关损耗，提高了变换器的效率。
Double space vector modulation can realize zero current commutation of the rectifier side, greatly reduce the switch loss, and improve the efficiency of the converter.
在数字电视前端采用的数字调制方式需要具有良好的带宽效率和功率效率。
The digital modulation applied in the front of HDTV needs good band efficiency and power efficiency.
分析了多维声光衍射的衍射效率、压缩、交叉调制和互调制强度等特性。
The characteristics of the diffraction efficiency, compression, cross modulation, and intermodulation intensities are analysed theoretically.
PP M脉冲位置调制通信技术作为一种新兴的通信技术，具有编码简单、能量传输效率高的优点。
As a new communication technology, PPM (pulse position modulation) technology can be easily coded, and has a high efficiency of energy transmission.
由于高速数据占用更宽的带宽，所以在调制制式上应该寻找一种适合于跳频通信特点的具有高频谱效率的调制方案。
Because high-speed data take up wide bandwidth, looking for one which have high efficiency modulation scheme and suitable for frequency hopping communication system is needed.
该方案结合SDH技术和AT M技术两者的优点，提高了DVB信号适配到SDH网络的适配效率，同时满足了HFC不同调制方式的灵活性。
This scheme combined the advantages of SDH technology and ATM technology, improved adaptation efficiency from DVB signal to SDH network, and satisfied HFC modulation mode's flexibility.
控制器：脉冲宽度调制电子最高的效率。
Controller: Pulse width modulation electronic for highest efficiency.
开发高效的编码、调制以及信号处理技术成为提高无线频率效率的必然手段和当务之急。
To develop highly efficient coding, modulation and signal processing technologies is becoming the most necessary measure to realize these demands.
文中指出，在晶体管化的脉宽调制器中，在效率和失真两个方面。PANTEL原理电路优于基本PD M电路。
So far as efficiency and distortion are concerned, the transistorized pulse-duration modulator by PANTEL method is proved to be superior to that by the basic PDM circuit.
研究结果表明，群速度失配会导致二倍频光脉冲宽度的增大和转换效率的降低，非线性相位调制使二倍频光脉冲形状发生畸变，降低转换效率。
The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.
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