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tber2
Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers,
one exactly 90 degrees out of phase with respect to the other, are used to transmit data over
a given physical channel. One signal is called the I signal, and the other is called the Q signal.
Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase
shift, each can be modulated independently, transmitted over the same frequency band, and
separated by demodulation at the receiver. For a given available bandwidth, QAM enables data
transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation
in the bit error ratio (BER).
- 2010-06-12 00:02:46下载
- 积分:1
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winplusadjustspectrel
针对扫频光源等干涉图中存在的旁瓣进行加窗处理,减弱旁瓣。(Swept light source for the interference pattern in the presence of sidelobes windowing processing, reduced sidelobes)
- 2014-12-01 15:40:57下载
- 积分:1
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智能控制第4版-matlab
说明: 刘金琨 智能控制第四版 matlab例程(The fourth edition of Liu Jinkun's Matlab routine for intelligent control)
- 2018-05-14 15:26:42下载
- 积分:1
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hangjia_program
平面桁架程序,主要针对土木工程设计计算领域,给出了计算数据,及计算程序,值得学习(Plane truss procedures, mainly for the field of civil engineering design calculations are given calculated data, and calculation procedures, it is worth learning)
- 2010-01-17 14:21:10下载
- 积分:1
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LMS-algorithm-for-adaptive-equalizer
在ISI信道中,用PN码作为训练序列,使用LMS算法的自适应均衡器(ISI channel, PN code as the training sequence, the adaptive equalizer using the LMS algorithm)
- 2012-03-28 14:16:57下载
- 积分:1
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Rayleigh-fading-channel-(2)
瑞利衰落信道(Rayleigh fading channel)是一种无线电信号传播环境的统计模型。这种模型假设信号通过无线信道之后,其信号幅度是随机的,即“衰落”,并且其包络服从瑞利分布。(Rayleigh fading channel, Rayleigh fading channel) is a statistical model of radio signal propagation environment. This model assumes that the signal through a wireless channel, its signal amplitude is random, or "decline", and its envelope obey Rayleigh distribution.
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- 2013-05-03 18:14:33下载
- 积分:1
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MIMO_ZF_MMSE
MIMO系统中,MMSE和ZF自适应均衡准则误码率的比较,性能较好(In MIMO system, MMSE and ZF equalization error rate comparison criteria, the performance is good)
- 2013-12-22 09:52:21下载
- 积分:1
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FIR_filter_based_on_simulink
基于Simulink的FIR数字滤波器的设计与实现(Simulink-based FIR digital filter design and implementation)
- 2010-08-25 22:28:15下载
- 积分:1
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fdtd1D
一维fdtdMATLAB程序,主要用于处理问题电磁场(FdtdMATLAB one-dimensional process, is mainly used to deal with the issue of electromagnetic fields)
- 2009-04-13 15:16:50下载
- 积分:1
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kalman-simulink
基于Matlab的卡尔曼滤波器的实现与仿真代码,验证成功(Based on Matlab Kalman filter implementation and simulation code, the validation is successful)
- 2013-12-27 12:55:32下载
- 积分:1