1) HQAM
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分层正交幅度调制
2) quadrature amplitude modulation
![点击朗读](/dictall/images/read.gif)
正交调幅,正交幅度调制
4) QAM
![点击朗读](/dictall/images/read.gif)
正交幅度调制
1.
Two methods for the implementation of QAM IF output in DVB-C system;
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DVB-C中实现正交幅度调制中频输出的两种方法
2.
Simulation of digital sensor signal QAM technology based on communication channel
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基于通信信道的数字传感信号正交幅度调制技术仿真研究
3.
Design of wireless image transmission system based on QAM
![点击朗读](/dictall/images/read.gif)
基于正交幅度调制的无线图像传输系统设计
5) quadrature amplitude modulation
![点击朗读](/dictall/images/read.gif)
正交幅度调制
1.
By using the moment-generating function-based analysis approach,we derive the average bit error rate for generalized hierarchical M-ary quadrature amplitude modulation(GH-MQAM) with maximal ratio combining(MRC) diversity reception in Weibull fading channels.
该文研究威布尔衰落信道上采用最大比合并分集接收的广义分级M进制正交幅度调制方案,使用矩生成函数方法推导其平均误比特率性能,并研究采用Padé近似技术来简化计算的方法。
2.
The performance of the bit-error rate for M-ary quadrature amplitude modulation(MQAM) signals in orthogonal frequency-division multiplexing(OFDM) systems with generalized selection combining scheme based on signal-to-noise ratio(SNR-GSC)and bit log-likelihood ratio(BLLR-GSC) on correlated frequency-selective Nakagami-m fading channels have been investigated respectively.
研究频率选择性相关Nakagami-m衰落信道上基于信噪比广义选择合并(SNR-GSC)和基于比特对数似然比广义选择合并(BLLR-GSC)分集接收,采用M进制正交幅度调制方式的正交频分多路复用(MQAM-OFDM)系统的误比特率性能。
3.
Bit error rate performance of M-ary quadrature amplitude modulation(MQAM) signals with generalized selection combining scheme based on signal-to-noise ratio(SNR-GSC)or bit log-likelihood ratio(BLLR-GSC) on correlated Nakagamim fading channels has been investigated.
研究相关Nakagami-m衰落信道上基于信噪比广义选择合并(SNR-GSC)和比特对数似然比广义选择合并(BLLR-GSC)天线分集的M进制正交幅度调制(MQAM)系统的误比特率性能。
6) quadrature amplitude modulation (QAM)
![点击朗读](/dictall/images/read.gif)
正交幅度调制(QAM)
补充资料:垂向分层理论
垂向分层理论
stratification theory of grains in vertical direction
ehuix旧ng feneeng Iilun垂向分层理论(stratifieation theory of grainsin vertieal direetion)对重选过程中矿粒群在介质中作垂向分层运动机理的阐释。在重选设备内堆置或铺置的动态矿粒群称作床层。借助介质的垂直流动、沿斜面流动或作回转运动使床层松散,是粒群发生分层转移的先决条件。分层是指矿物粒群按密度差形成不同的矿物层;颗粒的粒度以及形状对分层也有重要影响。对于分层的发生机理,曾经有过多种见解,但归纳起来不外两类观点。一类是动力学分层学说,认为分层是按个别颗粒在介质中的运动差异发生的(见自由沉降速度差分层学说、干涉沉降速度差分层学说);另一类是静力学分层学说,认为分层是粒群整体的内在不平衡因素引发的(见悬浮体密度差分层学说、位能分层学说和重介质分层学说)。前一类学说强调了流体动力对颗粒运动的影响,而忽略了颗粒间的静力作用;后一类学说的立论观点则忽视了流体动力对分层的影响,而将床层内颗粒或颗粒群间的静力差异视为分层的决定性因素。 (孙玉波)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条