功率效率

基于多天线的开环MIMO技术能够利用空间自由度获得复用和分集增益，以此提高无线通信的频谱效率和功率效率。

Employing multiple antennas , the open-loop MIMO can provide multiplexing and diversity gains by making use of the additional degrees of spatial freedom , and improve the spectral and power efficiency of wireless communications .

MIMO技术在支持高速数据传输，提高频谱利用率和功率效率等方面具有其他技术所望尘莫及的优势，成为了未来高速移动通信系统中的重要技术。

In support of high-speed data transmission , spectrum efficiency and power efficiency , MIMO technology has advantages unmatched by other technologies , so it becomes the importance of technology into a high-speed mobile communication system in the future .

不可逆Dual循环的功率效率特性

The Power and Efficiency Characteristics for Irreversible Dual Cycles

考虑摩擦时Otto循环功率效率特性新析

New Solutions of Power and Efficiency for Otto Cycles with Friction

THP具有更好的功率效率。

THP have better power efficient .

以数据为中心的计算面临的主要挑战并不仅仅只是每秒执行的指令或每秒进行的浮点操作，还包括IOPS和数据处理的整体功率效率。

The main challenge with data-centric computing is not instructions-per-second or floating-point-operations-per-second only , but rather IOPS and the overall power efficiency of data processing .

FQPSK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 .

IC-FDE-DFE可以缩短频域均衡所需的循环前缀（CP）的长度，提高稀疏多径信道下SC-FDE系统的带宽效率和功率效率。

IC-FDE-DFE can reduce the length of cyclic prefix ( CP ) required for frequency-domain equalization and can improve the bandwidth efficiency and power efficiency of SC-FDE systems in sparse channels .

MIMO天线技术对于支持高数据传输、提高频谱利用率和提高功率效率方面有着极大的优势，目前MIMO技术已经广泛的应用于LTE、802.11n（WLAN）、HSPA系统中。

MIMO antenna technology has a great advantage for supporting high data transmission , improving the spectrum utilization and improving the power efficiency . It has been widely used in LTE , 802.11n ( WLAN ) and HSPA system .

高斯最小频移键控（GMSK）具有极好的频谱利用率、功率效率和可以采用非相干解调等优点，已经广泛应用于无线通信系统，尤其是移动通信领域。

With the advantages of good spectrum utilization and power efficiency as well as noncoherent demodulation can be employed , GMSK ( Gaussian Minimum Shift Keying ) has been widely applied in the wireless system .

结果表明，基于FBG编解码器的OCDMA系统具有设计简单、用户容量大、功率效率高和误码率（BER）低等方面的优点。

The results reveal that the OCDMA systems with FBGs based encoder / decoder are not only easy to plan , but also have large number of simultaneous users , high power efficiency and low bit error rate ( B ER ) .

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 .

器件的启亮电压为3.2V。最高的流明效率和功率效率分别达到69cd/aand62lm/W，对应于12%的最大功率转换效率和17%的外量子效率。

The device turn-on voltage is 3.2 V. The maximum luminance efficiency and maximum luminous power efficiency reach 69 cd / A and 62 lm / W , respectively , corresponding to an external quantum efficiency of 17 % .

不可逆性对热机功率效率的影响

The Effect of Irreversibility on Heat Engine Power and Efficiency

不可逆闭式燃气轮机循环的最佳功率效率特性

The Optimal Power versus Efficiency Characteristics of Irreversible Closed Gas Turbine Cycles

热漏对热机功率效率特性的影响

The Influence of Heat Leak on the Power versus Efficiency Characteristics of Heat Engines

246.6MW，微波频率4.49GHz，功率效率19.82%。

The microwave frequency is 4.49 GHz .

中继传输能够有效地提高系统功率效率以及传输容量。

Relayed transmission is an efficient method to improve the power efficiency and system capacity .

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 .

接着，论文对系统功率效率进行了建模和分析，提出了比例功率分配法。

Then , the power efficiency is modeled and analyzed . A Proportional Power Allocation method is proposed .

考虑机械损失时发动机功率效率特性机械化集约农业是高效率的典型。

Power and efficiency characteristics of engine with mechanical losses Intensive mechanized agriculture is typically regarded as being efficient .

深空通信因其传送信号距离遥远且随着通信量的日益增大，促使着高带宽效率和高功率效率的调制技术的发展。

The power-and-bandwidth-efficient modulations were developing in the deep space communication system for the long communicate distance and the increase telemetry .

为了适应未来通信技术的高速发展趋势，需要采用高频谱效率、高功率效率的编码调制技术。

To accommodate the fast development of wireless communication , the coding and modulating with high efficiency of the spectrum and the power are needed .

与常规通信相比，协作通信技术具有更高可靠性、更高功率效率和更高频谱效率的优势。

Contrast to traditional communication scheme , cooperative communication can achieve lots of advantages , such as higher reliability , higher power-efficiency , and higher spectrum-efficiency .

为了系统获得较高的功率效率，功率放大器通常工作在饱和点附近，此处的非线性问题最为严重。

In order to obtain higher power efficiency , power amplifier is usually worked in the vicinity of saturation point , where the non-linear problems are most serious .

在某些情况下，就成本、功率效率和大小的实际极限而言，扩展内存、处理和存储单个节点可集成点击数。

At some point , scaling the memory , processing , and storage a single node can integrate hits a practical limit in terms of cost , power efficiency , and size .

基于平流层平台的通信系统是一种极具吸引力的新型通信系统，其高速数据中继传输需要采用先进的信道编码技术，以便在保证较高功率效率的前提下达到很低的误码率。

Communication system based on Stratospheric Platforms has many attractive advantages , where its data relay transmition requires advanced channel coding so as to keep very low bit error rate in the situation of high power efficiency .

在详细分析往复式柱塞泵性能和注水管网特性的基础上，建立了注水管网数学模型，提出了往复式注水泵站最小轴功率效率优化问题模型。

Based on detailed analysis of the performance of reciprocating pump and the characteristics of the pipe networks , this paper proposed a model of water injection pipe networks and an optimization model of shaft horsepower minimization for water injection pump stations .

本文提出一种新的相位估计算法，该算法利用小数据量的参考信号对相位调制信号的相干检测来提高功率效率，而且在同一编码块（同一跳）中实现相位估计。

We present here a novel approach for phase estimation . Through coherent detection of phase modulated signals with few reference symbols ( with and without differential encoding ), the approach may improve power efficiency and implement phase estimation in the same coding block .

导出了Diesel热机更一般的输出功率和效率的解析表达式。

The analytic expressions of power output and efficiency of generalized Diesel heat engine are derived .