quadrature amplitude modulation是什么意思，quadrature amplitude modulation的意思翻译、用法、同义词、例句

正交调幅

QAM (Quadrature Amplitude Modulation) has been widely used in various digital communication systems due to its high modulation efficiency.

正交幅度调制（QAM）具有较高的调制效率，被广泛应用于各种数字通信系统中。

The paper analyzes the interference rejection of Quadrature amplitude modulation signals in the presence of carrier phase jitter, sinusoidal interference and white Gaussian noise.

文章分析了存在载波相位起伏、正弦干扰、高斯白噪声时正交调幅数字系统的抗扰性。

From this point, M-ary Quadrature Amplitude Modulation (MQAM), MultiCarrier Modulation (MCM) and adaptive modulation techniques are good candidates in next generation mobile radio system.

从这一点出发，多元正交幅度调制（MQAM）、多载波调制（MCM）及自适应调制技术成为下一代移动无线系统中最有竞争力的几种候选技术。

A low-complexity adaptive quadrature amplitude modulation(QAM) scheme was presented to increase throughput for multi-antenna communication system with covariance feedback.

基于多天线相关信道协方差反馈，提出一种低复杂度自适应正交幅度调制（QAM）机制以提高系统发送速率。

A joint carrier-phase-tracking algorithm based on signal combining is proposed for carrier phase tracking of quadrature amplitude modulation(QAM) signals.

针对低信噪比下QAM信号的载波相位跟踪问题，提出一种基于信号合成的联合载波相位跟踪算法。

The implementation of OFDM base-band processing system, characterized by 16-QAM (Quadrature Amplitude Modulation) and 64 sub-carriers, is paid more attention.

重点研究了基于64路子载波，采用16-QAM调制的OFDM基带处理系统的实现。

Quadrature Amplitude Modulation(QAM) is used to transfer signals by digital TV system based on DVB_C standard.

基于DVB_C标准的数字电视系统采用正交幅度调制（QAM）传送信号。

Multi-level Quadrature Amplitude Modulation is very sensitive to carrier phase noise.

多电平QAM调制对载波的相位噪声非常敏感。

A complex-valued minimum bit error rate(MBER) nonlinear equalizer is proposed for equalization of quadrature-amplitude modulation(QAM) in nonlinear channels.

本文提出一种复值的最低误码率非线性滤波器用于非线性信道中QAM信号的均衡。

Quadrature Sideband Amplitude Modulation?

正交边带调幅 QSAM?。

Quadrature Phase and Amplitude Modulation?

正交相位和幅度调制 QPAM?。

The errors are classified according to their frequency. The amplitude and phase errors of the LFM signal generators using quadrature modulation technology are mapped into baseband.

提出了一种将正交调制LFM信号产生系统的幅相误差映射到基带后，在数字域利用复系数FIR滤波器进行校正的方案。

A new variable step-size blind equalization algorithm based on the multi-mode error switch is proposed by considering the characteristics of the Multiple Quadrature Amplitude Modulation(MQAM) signals.

利用多电平正交幅度调制（MQAM）信号的分布特点，提出了一种适合MQAM数字通信系统的新的基于多模误差切换的变步长盲均衡算法。