平均功率

据报道疲劳时肌纤维动作电位传导速度（MCV）和肌电图平均功率频率（MPF）均有下降。

The decrease in muscle fibre action potential conduction velocity ( MCV ) and electromyographic mean power frequency ( MPF ) has been reported by many researchers .

100次搬举后平均功率频率截距在L3左竖脊肌下降了9%，与搬举前比较，差异有显著性（P<0.05），其他部位下降不明显。

The mean power frequency intercept decreased by 9 % at L3 left erector spinae muscle ( P < 0.05 ), the decrease was not statistically significant at other sites ( P > 0.05 ) .

患者屈肌和伸肌的力矩加速能、最大单次作功量、平均功率均较正常人显著降低（P＜0.05）。

Total work 、 torque acceleration energy and average power of flexors and extensors in the patients decreased significantly .

高平均功率高重复频率TEACO2激光器系统关键技术研究

Study on Some Key Technology of High Average Power High Repetition Rate Tea CO_2 Lasers

高平均功率脉冲TEACO2激光器输出光束质量评价

Evaluation of the Beam Quality of a High Average Power Pulse TEA CO 2 Laser

高平均功率腔内和频蓝光Nd∶YAG激光器

High power blue Nd ∶ YAG laser by intracavity summing frequency

高平均功率调Q准连续Nd：YAG激光器

High average power Q-switched quasi - continue - wave Nd : YAG laser

采用光栅谐振腔，实现了平均功率千瓦级的高重复频率TEACO2激光调谐输出。

Kilowatt-level high repetition rate tunable TEA CO2 laser output was realized by grating resonator .

OFDM系统降低峰值平均功率比技术研究

Research on Reduction of Peak-to-Average Power Ratio in OFDM System

一种降低OFDM信号峰值平均功率比的优化算法

An Optimal Algorithm for Reducing the Peak to Average Power Ratio of OFDM Signal

过采样OFDM信号的峰值平均功率比

Peak-to-Average Power Ratio of the Oversampling OFDM Signals

进而就得到与平均功率成正比的N个搜索频率的信号功率值。

The power quantities for each of the N search frequencies are then summed to produce N quantities proportional to average power .

OFDM系统中基于部分传输序列圆周移位最优和的降低峰值平均功率比的算法

OFDM with Reduced Peak to Average Power Ratio by Optimum Summing of Circular Shifting of Partial Transmit Sequences

系统的峰值平均功率比越高OFDM发射机输出信号的瞬时波动就越大。

The higher the peak-average power ratio of System , the greater instantaneous volatility of OFDM transmitter output signal .

KTP腔内倍频已实现33瓦绿光稳定的高平均功率输出

Stable High Average Power Output of 33W by using KTP as Intracavity Doubler

本文分析了一个折衷方案，即最小速率容量，具体研究了平均功率受限条件下的MIMO多接入信道容量域并给出了最优功率分配策略。

A tradeoff definition with minimum rate requirements is introduced and optimal power allocation strategy is addressed for MIMO fading multi-access channels .

PPM（PulsePositionModulation）数字脉冲位置调制具有低平均功率和高峰值功率等特性，特别适合用于无线数字光通信。

Pulse Position Modulation ( PPM ) has the characteristic of low average power and high peak power which makes it be suitable for optical communication very much .

本文对其中的平均功率法、多步法和PCM法进行了分析和比较。

We analyze and compare some of them such as average power method , multi-steps method and PCM .

但是OFDM也具有固有的缺陷，即较高的峰值平均功率比（PAPR）问题和对频率偏移较敏感。

But OFDM has inherent drawbacks of high peak-to-average power ratio ( PAPR ) and it is sensitive to frequency offset .

等速测试指标：峰力矩（PT）、平均功率（AP）和单次最大作功（TW）。

Variables studied included peak torque ( PT ), average power ( AP ) and total work ( TW ) .

它的主要缺点是对频率同步比较敏感，并且峰值平均功率比（PAPR）过高。

Its main disadvantages are sensitivity to synchronization errors and high peak-to-average power ratio ( PAPR ) .

针对高平均功率线阵二极管激光器（DL）芯片的工作要求，开展了相应的封装结构设计和高效冷却技术研究。

The package structure and high efficiency cooling technique have been studied for high average power diode laser .

高平均功率全固态OPO及倍频可调谐蓝光激光器

High Power Tunable Blue Lasers from All-solid-state Optical Parametric Oscillator with Frequency Doubling

但是OFDM系统有着一个主要的缺点，那就是传输信号拥有相当大的峰值平均功率比（PAPR）。

One of the main implementation disadvantages of OFDM is the high peak-to-average power ratio ( PAPR ) of the transmitted signals .

峰值与平均功率之比（峰均比，PAPR）越大，被削峰的概率也越高。

The problem of clipping is more severe when the peak-to-average power ratio ( PAPR ) is large .

然后针对多载波系统峰值平均功率比（PAR）的最小化问题提出了一种基于遗传优化的多载波系统PAR最小化算法。

Then for the minimizing of multicarrier system PAR , it proposes a multicarrier system PAR minimizing algorithm based on inherit optimizing method .

高平均功率Q开关固体激光器具有较多的应用需求，Nd∶YAG激光器只有采用振荡放大结构才能获得Q开关高平均功率激光输出。

There is an application requirement for Q switched solid state laser systems with high average power , which can be achieved with a Nd ∶ YAG oscillator amplifier system .

在实验上获得了平均功率5W，峰值功率500W的高重复频率输出。

The modulated output peak power of 500W has been obtained .

分析了平均功率受限条件下，基于最小速率约束的MIMO多接入信道容量域，并给出了最优功率分配策略。

The capacity region with average power constraints of MIMO fading multi-access channels based on minimum rate requirements is analyzed and the optimal power allocation strategy is suggested .

输出平均功率达200W的板状激光器

Nd : YAG slab laser with average output power of 200W