eNodeB在选择MCS,即选择调制阶数(modulation order)和TB size时,会保证对应的码率(code rate)尽可能地接近CQI index指示的码率(对应36.213的Table 7.2.3-1中第3列)。
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modulation order estimation 调制阶数
high-order QAM modulation 高阶QAM调制
second-order inter-modulation 二阶互调
third order inter-modulation distortion 三阶互调失真
Third Order Inter modulation 三阶互调
order modulation 阶调制
A modulation order recognition algorithm for M-ary CPM signals is proposed.
提出了一种多进制CPM信号的调制阶数识别方法。
参考来源 - 数字通信信号调制方式自动识别技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
If the modulation order is different, the higher the order is, the worse the performance is, but the transmitting rate is bigger.
随着调制阶数的增加,正交空时分组码的性能越来越差,但传输速率变大;
In order to measure the Modulation Transfer Function (MTF) of image sensor conveniently, contact measurement using rectangle template is proposed based on sine template contact measurement.
为了方便地测量图像传感器的调制传递函数(MTF),在正弦模板法基础上,提出了矩形模板接触测量的方法。
In order to improve the frequency stability of the frequency modulation circuit and the crystal oscillator, using the temperature compensation circuit is extremely effective method.
为了提高调频电路和晶体振荡器的频率稳定度,采用温度补偿电路是一种极其有效的方法。
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