itu-r 656标准ITU-R Recommendation 656 - Standard Text-Available parts of this standard text
2008-07-18 11:00
itu-r bt.500-11Subjective assessment methods are used to establish the performance of television
2008-07-18 11:15
itu-r m.1225International Mobile Telecommunications-2000 (IMT-2000) are third generation mobile
2008-07-18 11:19
、地物的地理条件下,电波容易发生绕射现象。传统的电波传播预测模型ITU-R P.370以及ITU-R P.1546比较适用于开阔和低起伏的丘陵地区,而对于多山地区,其预测误差相对较大。为此,国际电联
2019-06-18 06:32
The digital Video Standard according to ITU-R BT. 601/656Leveldiagram at the input of an A/D converter for theanalogue component signals Y , CB , CR
2009-06-13 00:00
fitu r wp8f? ITU-R established WP8F in November 1999 to study terrestrial component of “Future
2008-07-18 11:25
在近日举行的ITU-R WP5D#25会议上,中国提出的基于三维数字地图的混合信道模型,获得国际电信联盟ITU专家组认可,进入IMT-2020(5G)技术评估报告框架中,为5G标准的制定贡献重要力量
2019-06-18 07:54
Since according to ITU-R BT. 470 the bandwidth of the B/G systemstandard is 5 MHz, or pursuant
2009-01-13 18:23
ITU-R M.2134对下一代无线网络的要求是什么?为啥4G选择OFDM和OFDMA?
2021-05-25 06:35
的ITU-R 601标准格式的数据输出端口,扩展X端口。采用集成4通道低噪声4浮点ITU-R 656过采样(54MHz)10bit A/D转换器;可输入处理YPbPr(480P、576P)分量信号;输出
2021-05-20 07:58