itu-r meaning in Chinese
国际电联无线电部门
国际电信联盟无线电通信部门
无线电局
无线电通信部门
Examples
- Itu - r international telecommunications union - radio communications sector
国际电联无线电部门 - Attendance at meetings of itu - r 6th sg and its wps in march
2001年3月国际电联第六研究组及其工作组会议情况 - Dect is a kind of digital cordless telecommunication technique that was developed by etsi in 1992 and was brought to the standard by itu - r on nov 5 , 1999
Dect是etsi于1992年推出的称为二代半的数字无绳通信标准，并且于1999年11月5日的赫尔辛基会议上被国际电联itu - r纳入3g标准。 - An atmosphere structure constant cn2 model , which varies with height , is presented based on itu - r amplitude scintillation model , existing itu - r optical cn2 model and meteorologic measurement relative humidity and temperature profile data , at 10 ~ 30ghz . the log - amplitude scintillation deviation calculated in terms of the cn2 model based on humidity and temperature vertical profile compare with values predicted by means of itu - r and ortgies model . it is emerged that the calculation results based on the cn2 model agree almost with prediction results by itu - r and ortgies model at 10 ~ 30ghz and there is an advantage that relative humidity and temperature varied with height has be considered in the cn2 model
根据光波段的itu - rc _ n ~ 2模型， itu - r幅度闪烁标准偏差模型，和温度和相对湿度随高度变化的气象数据，在10 30ghz ，分析得到了大气结构常数c _ n ~ 2随高度变化的模型；并根据温度和湿度垂直分布数据计算了对数幅度闪烁_ x ，还与itu - r和ortgies模型的预测结果进行了比较，结果表明，在10 30ghz ，用该c _ n ~ 2模型计算的结果和用itu - r及ortgies模型预测的值符合较好，且在用c _ n ~ 2模型计算时考虑了温度和相对湿度随高度变化关系。 - The system generates 18 kinds of worldwide used hdtv test pattern signals supported by smpte 274m standard , and also provides ypbpr , rgb video outputs both in digit and analog and the output interfaces of itu - r bt . 1120 - 2 / gy / t157 - 2000 studio hdtv digital video signal interface standard
该系统生成了符合smpte274m国际标准的18种普遍采用的hdtv测试图案信号。它提供ypbpr 、 rgb两种视频数字输出与模拟输出,其接口符合itu - rbt . 1120 - 2 / gy / t157 - 2000演播室高清晰度数字视频信号接口标准。