-
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
-
Matlab
这是个Matlab的学习的好帮手，里面有许多有用的小东西，很适合初学者。(This is a good helper to learn Matlab, which has many useful little things, it is suitable for beginners.)
- 2010-08-14 12:07:22下载
- 积分：1
-
Re__Excuse_me
power system economics
- 2008-07-07 20:37:17下载
- 积分：1
-
BPNeuralNetwork
说明： BP神经网络（主要用于函数拟合与模式分类）Matlab的示例程序(BP neural network (the main function for the fitting and pattern classification) Matlab sample program)
- 2021-04-19 22:58:51下载
- 积分：1
-
Gausssiedel_infinite
load flow study programme using gauss siedal method for infinite iteration
- 2013-09-16 17:15:06下载
- 积分：1
-
demodulation
本程序是对V-BLAST系统及其检测算法的仿真，可采用BPSK,QPSK,16QAM,64QAM调制。检测算法为ML，MMSE,ZF,以及采用迫零的连续干扰消除检测算法。(This procedure is the V-BLAST system and its detection algorithm simulation, can be used BPSK, QPSK, 16QAM, 64QAM modulation. Detection Algorithm for the ML, MMSE, ZF, and the use of zero-forcing successive interference cancellation algorithm.)
- 2010-05-08 11:54:46下载
- 积分：1
-
YC
说明： 遗传算法，一个不错的程序，可以试试看，改进了一点点，大学共同探讨 了(Genetic algorithm (ga), a good program, can try to improve a little bit, the university is discussed
)
- 2013-10-05 18:09:53下载
- 积分：1
-
daopu_ok
实现振动信号的FFT图，时域图以及两种倒谱的方法(realize the two analize way of the dao-pu for the signal)
- 2013-10-22 23:12:29下载
- 积分：1
-
d
说明： 自己练习编写的波动方程，不知道行不行，求指正，求批评(wave equation)
- 2013-04-15 13:27:39下载
- 积分：1
-
untitled1
有源逆变器中的LCL滤波器，无控制模块matlab仿真(LCL filter control module matlab simulation)
- 2018-01-02 21:39:33下载
- 积分：1
