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Description: QAM调制
调制qammod(a,16)； 解调用qamdemod 画星座图modmap( qam ,4)
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Size: 1297 |
Author: 赵博 |
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Description: QAM调制
调制qammod(a,16)； 解调用qamdemod 画星座图modmap( qam ,4) -QAM modulation modulation qammod (a, 16) solution qamdemod painting called constellation diagram modmap (qam, 4)
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Size: 1024 |
Author: 赵博 |
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Description: 完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统，cdma链路，mac层仿真分析.-Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
in the world have specialized teams working in the optimization of OFDM for
countless applications. Here, at the Georgia Institute of Technology, one of such
teams is in Dr. M. A. Ingram’s Smart Antenna Research Laboratory (SARL), a part
of the Georgia Center for Advanced Telecommunications Technology (GCATT).
The purpose of this report is to provide Matlab code to simulate the basic processing
involved in the generation and reception of an OFDM signal in a physical
channel and to provide a description of each of the steps involved. For this purpose,
we shall use, as an example, one of the proposed OFDM signals of the Digital
Video Broadcasting (DVB) standard for the European terrestrial digital television
(DTV) service.
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Size: 861184 |
Author: 田静 |
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Description: QAM调制，解调matlab代码，包含BPSK，QPSK,16QAM,64QAM,256QAM,1024QAM,4096QAM。其中调制方式。代码通过验证。-QAM modulator,demodulator
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Size: 2048 |
Author: 鲁莎莎 |
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Description: modem.qammod对象实现M-QAM调制器，本示例中M为16。其输入参数是从0到15的整数而不是4bits二进制数据。因此，在利用此对象的modulate方法之前需要对二进制数据序列x进行预处理。特别地, 先采用MATLAB中的reshape函数将x沿着矩阵的行方向重新整理成每行4bit数据，然后应用bi2de函数将4bit数据转换成相应的整数。-modem.qammod object implements M-QAM modulator M in this example is 16. Input parameter is an integer from 0 to 15 instead of 4bits binary data. Therefore, before using the method of this object needs to modulate the binary data sequence x pretreatment. In particular, the first use of MATLAB reshape function x 4bit rearranged into each row of data in the row direction of the matrix, and then apply bi2de 4bit function to convert the data into the corresponding integer.
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Size: 6144 |
Author: 任帅 |
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Description: 对于已定义的包含从0到15的整数的列向量xsym，就可以利用modem.qammod对象的modulate方法来调制它。其中M值为16，亦即为码字表的大小。
对已调制信号可采用awgn函数添加加性高斯噪声。其中比特能量与噪声功率谱密度的比值，Eb/N0，设置为10dB。
-The method comprising modulate integer from column vectors xsym 0 through 15, can use the defined object modem.qammod modulating it. Wherein M is 16, i.e., a codeword size of the table. Modulated signal can be used for awgn function to add the additive Gaussian noise. Wherein the ratio of bit energy to noise power spectral density, Eb/N0, is set to 10dB.
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Size: 8192 |
Author: 任帅 |
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Description: 16QAM调制解调源码,包含FFT、IFFT、MER计算等-16-QAM modulation
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Size: 2048 |
Author: haidao |
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Description: 64QAM调制系统 matlab 显示星座图-64QAM modulated system MATLAB
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Size: 74752 |
Author: |
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