3) High order M-QAM
高阶M-QAM
4) QAM signal
QAM信号
1.
By combining the traditional signal processing tool-FFT with wavelet transform,a new method of baud-rate extraction for QAM signal is put forward in this paper.
将传统的信号处理工具———傅里叶变换与小波变换相结合,提出了一种QAM信号波特率提取的新方法。
2.
Analysis and simulation results demonstrate that compared with conventional blind qualization algorithms,the proposed algorithm provides superior performace by increasing the convergence rate and decreasing the steady-state mean square error,which is more efficient for blind demodulation for high-order QAM signal.
理论分析和仿真结果表明,对于高阶的QAM信号来说,在相同的条件下,与常规常模算法相比,提出的算法具有更快的收敛速度和更低的稳态残差;当载波频偏较大时,与多模算法相比,提出的算法仅仅均衡信号的能量,不影响其相位,因此,更适合后端的载波同步处理,得到更好的系统性能。
5) QAM signals
QAM信号
1.
This paper is focusing on study of NDA nonlinear least-squares(NLS) carrier frequency offset estimation for QAM signals.
针对一类无数据辅助的非线性最小均方(NLS)载波频偏估计算法进行研究,讨论了其针对QAM信号的应用。
2.
This paper deduces the NDA SNR estimation algorithm for QAM signals in additive Gaussian white noise channel and on the condition of the equivalent a priori probability of transition signals positioning on every constellation point by using statistics.
该文利用统计量的知识,推导了QAM信号在加性高斯白噪声信道且星座任意一点的发送概率相同条件下的非数据辅助(盲)信噪比估计算法。
6) QAM
QAM信号
1.
The Recognition of QAM Signal Based on Constellation Diagram;
基于星座图的QAM信号调制方式识别
2.
Blind Estimation of Star-QAM Carrier Frequency over Frequency-selective Fading Channels;
频率选择性衰落信道下的星形QAM信号载波盲估计
补充资料：高信号强度
高信号强度
磁共振成像术语。磁共振成像中，高于参照结构信号强度值结构的信号强度，即比参照结构信号亮的信号。MRI中的信号强度值为一无量纲值，在不同设备、不同场强、不同次扫描中的信号强度值是随机的，因此，通常只作信号强度的定性判断，不作定量比较。
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