1) OQAM
偏移正交幅度调制
2) quadrature amplitude modulation
正交调幅，正交幅度调制
3) QAM Quadrature Amplitude Modulation
正交调幅，90度相移幅度调制
5) QAM
正交幅度调制
1.
Two methods for the implementation of QAM IF output in DVB-C system;
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
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
基于正交幅度调制的无线图像传输系统设计
6) quadrature amplitude modulation
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。
补充资料：创建偏移剖面
要创建偏移剖面，必须通过在“草绘器”中进行草绘以定义切口轮廓。然后，垂直于草绘平面投影此轮廓。单击 
或“视图”(View)>“视图管理器”(View Manager)。“视图管理器”(View Manager) 对话框打开。单击“剖截面”(Xsec)。单击“新建”(New)。出现一个缺省的剖面名称。按 ENTER 键。“剖截面创建”(XSEC CREATE) 菜单打开。单击“偏移”(Offset)>“一侧”(One Side) 或“双侧”(Both Sides)>“完成”(Done)。“选取”(SELECT) 对话框打开。选取草绘平面，并定义查看方向和草绘方向。进入“草绘器”。选取用于尺寸标注的参照图元。草绘剖面轮廓并单击 
退出“草绘器”。 在“视图管理器”(View Manager) 中，单击“显示”(Display)>“设置可见性”(Set Visible)。“可见性”(Visibility) 对话框打开。单击“显示剖面线”(Show X-Hatching) 查看剖面。单击 预览或单击 接受选取的选项。
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