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- Test Method for Estimating Stray Radiant Power Ratio of Spectrophotometers by the Opaque Filter Method 用不透明滤光器估算分光光度计杂散辐射功率的试验方法
- radiant power ratio 辐射功率比
- A beam of high radiant power will have high divergence. 高辐射功率的光束会有高的发散度。
- This diode produces about nine times more radiant power than that one. 这只二级管的耗散功率比那只大8倍。
- Another attribute is the flux or radiant power that can be delivered in that narrow frequency band. 另一个性质就是在这样窄的频带内可以给出很高的光通量或辐射功率。
- A typical GaP diode produces about 10 times more radiant power than a typical CaAsP diode. 典型磷化镓二极管的辐射功率比典型磷砷镓二极管大10倍左右.
- Secondly led by big cities' radiant power the mid-scope cities enter into the construction of the ecological city. 然后，在各大城市的辐射带动下，各中等城市加入到生态城市建设当中。
- The reason for that lies in the fact that the Chinese culture has stronger cohesive force and radiant power than the Roman culture. 而另一文明中心却在这种冲击浪潮中灭亡了。 究其根本原因 ,在于汉文化的内聚力和辐射力要比古罗马文化更为强大
- The LPM Series collects the total radiant power emitted by highly divergent sources such as laser diodes, as well as collimated sources such as lasers. LPM系列集合了所有来自于诸如激光两极真空管的高辐射能和类似于平行光源的激光。
- One of the key techniques is to reduce the peak-to-average power ratio(PAPR) of the OFDM-CPM system. 降低OFDM-CPM系统中的峰值平均功率比(PAPR)是关键技术之一。
- A simple but effective scheme to reduce the high peak-to-average power ratio (PAPR) of OFDM is presented. 摘要针对正交频分复用(OFDM)所具有的高峰均比问题，提出了一种简单有效的降低峰均比的非线性变换方法。
- However, the major drawback of WOFDM is the peak-to-average power ratio(PAPR) problem. 然而小波正交分频多工技术的主要缺点，就是有太大的峰均值功率比。
- Abstract: By using the Compton scattering theory, the generation of picosecond pulses of terahertz radiation has been studied, including the photon yield and radiant power. 摘要： 研究了利用微波与电子束团的康普顿散射实现太赫兹的方法、光子产额和辐射功率。
- The curve of effective power ratio shows convexity shape along with increase of rotational speed or throttling. 有效功比率随转速或油门开度的增大基本成中凸状。
- Reducing the Peak-to-Average Power Ratio(PAPR) is one of the key technologies in MC-CDMA system. 降低信号峰平比(PAPR)是多载波码分多址(MC-CDMA)系统的关键技术之一。
- The increase of DP,amplitude and power ratio(PR) in the obesewere significantly higher than those in control group(P<0.01 and P<0.05). 肥胖组餐后功率及振幅增加值显著高于正常体重组(P<0.;01);
- The peak-to-average power ratio of orthogonal frequency division multiplexing(OFDM systems is reduced with an improved constellation extension scheme. 为降低正交频分复用(OFDM)信号的峰均功率比,提出了改进的星座图扩展方法。
- However one of main problems of OFDM is its high Peak-to-Average Power Ratio (PAPR) which seriously limits performance of High Power Amplifier (HPA). 但OFDM的主要缺点之一是它的严重影响了高功率放大器（HPA）性能的高峰值平均功率比（PAPR）。
- Orthogonal Frequency Division Multiplex (OFDM);Multicarrier-Code Division Multiple Access (MC-CDMA);Peak-to-Average Power Ratio;Performance; Preferred. 08正交频分复用;多载波码分多址;峰平功率比;性能;优选
- In this paper, the OFDM system which is based on fractional Fourier transform (FRFT) has been introduced, and the function of peak-to-average power ratio (PAPR) is achieved. 摘要介绍了基于分数阶傅里叶变换的正交频分复用系统，推导了该系统中峰均功率比公式。
