Description: 本文介绍了QAM调制、解调和判决原理，讨论了QAM的误码率性能，并在SystemView下对QAM调制、解调系统进行了仿真，观察并分析了原始输入信号、调制信号、解调信号、星座图以及QAM信号的功率谱图。-QAM modulation, demodulation and sentencing principle, the QAM BER performance, and right under the SystemView QAM modulation, demodulation system for simulation, observation and analysis of the original input signal, signal modulation, demodulation signal constellation map and QAM signals in the power spectrum. Platform: |
Size: 124928 |
Author: |
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Description: QAM调制的MATLAB仿真程序，是深入理解调制解调的一个很好的例子。-QAM modulation MATLAB simulation program, an in-depth understanding of modulation and demodulation of a good example. Platform: |
Size: 1024 |
Author:xiaonian |
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Description: 关于BPSK，QPSK，8QAM,16QAM，32QAM的调制解调程序部分2。-On the BPSK, QPSK, 8QAM, 16QAM, 32QAM modulation and demodulation process of the part 2. Platform: |
Size: 1024 |
Author:water206 |
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Description: 该程序在matlab环境下，对16QAM进行了调制解调的仿真，并对过程作出了图形的演示-The program in the matlab environment, carried out on the 16QAM modulation and demodulation of the simulation, and process the graphics demo Platform: |
Size: 121856 |
Author:李仪 |
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Description: 产生一段随机四进制信号，对其进行QAM调制后，送入加性高斯白噪声信道传输，用加法运算在已调信号叠加白噪声，模拟加性高斯白噪声信道对信号传输的影响，在接收端对信号进行相应解调，并与原始信号比较计算误码率。改变误差白噪声的功率，绘制信噪比与误码率曲线。并与同组其他同学的性能曲线比较各种调制方式的性能优劣。-For some randomly generated four-band signal, after its QAM modulation, into the additive white Gaussian noise channel transmission, and addition operations have been transferred signal superimposed white noise, simulated additive white Gaussian noise on the signal transmission channel impact in the receiving end of a corresponding signal demodulation, and compared with the original signal bit error rate calculation. Change the error of white noise power, signal to noise ratio and bit error rate mapping curve. And with the same group of other students to compare the performance curve modulation performance of the pros. Platform: |
Size: 464896 |
Author:ldj |
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Description: 数字调制解调的MATLAB仿，包括4qam,8qam，16qam,64qam的调制和解调程序-Digital modem imitation of MATLAB, including 4qam, 8qam, 16qam, 64qam process of modulation and demodulation Platform: |
Size: 39936 |
Author:李波 |
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Description: 一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，计算误比特率。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated with a raised cosine roll-off function for base-band modulation, and then transferred to high-frequency channel in the channel by adding Gaussian white noise, the use of matched filter device demodulator, draw demodulation constellation, using the minimum Euclidean distance decoding decision, calculate bit error rate. Platform: |
Size: 107520 |
Author:zhaoyang |
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Description: 16QAM调制解调，不用系统自带命令，完全按照调制解调系统进行。-16QAM modulation and demodulation, without the system comes with command, in full accordance with modulation and demodulation system. Platform: |
Size: 4096 |
Author:王新雨 |
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Description: qam 信号的产生和解调，以及误码率的计算，内包含多个小程序。-qam signal generation and demodulation, and bit error rate calculation, which contains many small programs. Platform: |
Size: 323584 |
Author:ning zhuang |
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Description: 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). Platform: |
Size: 508928 |
Author:Flo |
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Description: 16QAM调制与解调的Verilog语言的功能实现-the realization of 16QAM modulation and demodulation on Verilog language Platform: |
Size: 311296 |
Author:由佳彬 |
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Description: Quadrature Amplitude Modulator (QAM) in digital communication system, generation of Quadrature Phase Shift Keyed (QPSK or 4-PSK) signal and demodulation. Introduction: The QAM principle: The QAM modulator. Platform: |
Size: 64512 |
Author:Khan17
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