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利用matlab软件设计并仿真下面的无线通信系统。模拟信源为单音频信号。模拟调制方式为ASK。信道为多径信道（仿真中2径），信道中噪声为加性高斯白噪声。采用相干解调接收。画出了解调器输出端性能曲线与点信噪比SNR的关系。-Software design and simulation using matlab the following wireless communication systems. A single analog audio signal source. Analog modul
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阵列信号处理中互耦系数误差与信噪比的关系-Array signal processing in the signal to noise ratio of mutual coupling coefficient of the relationship between errors and
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多输入多输出(MIMO)通信系统相比其他的通信系统具有更高的频谱效率，在不增加发射功率以及信号带宽的
情况下，MIMO 技术可以有效地提高系统信道容量及其性能。利用均匀角能量分布以及相关矩阵，分析了相关信道下的MIMO
系统信道容量，得出了系统信道容量的通用公式，并利用MATLAB 进行仿真。仿真结果表明，相关性的增加意味着信噪比的减
小，圆形接收天线阵列半径与角度扩展是决定MIMO 系统信道容量的主要因素。-Multiple-input multiple output (MIMO)
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利用matlab计算图像变化前后的信噪比！-Use the matlab to calculate the Signal to Noise Ratio!
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不同的信噪比会产生不同的误码性能，本程序通过不同信噪比的设置，比较了系统的性能，能实现八个性能对比的图像-Different signal to noise ratio will produce different error performance of this program through a different signal to noise ratio set to compare the performance of the system to achieve the eight
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This function takes a quantized analog signal and calculating the signal to noise ratio SNR
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matlab实现计算DNA序列的信噪比的新算法-matlab new algorithm to calculate the signal-to-noise ratio of the DNA sequence
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自己编的一个计算信噪比的程序，可用于相应模型的功率谱估计-Made themselves a calculated signal-to-noise ratio of the program can be used for the power spectrum of the corresponding model estimates
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Traditional single particle reconstruction methods use either the Fourier or the
delta function basis to represent the particle density map. We propose a more
flexible algorithm that adaptively chooses the basis based on the data. Because
the b
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对磁共振图像进行边缘区域和图像区域的选取，并分别对两者进行均值和标准差的计算，最后得出信噪比。-For magnetic resonance images, how can we select the area of the air and the area of the image,then calculate the mean value and standard deviation value of both. Finally ,we can obtain the conclusion
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等间距线性阵列，阵元数M=8，阵元间距d= λ /2，等幅加权，目标方位φr =0°。产生空间白噪声矢量（复高斯分布）。
设阵列信号矢量元素s(m)=exp[j mψr]，其信号幅度为1，该阵元接收机附加的高斯噪声为n(m)=nmr+jnmi，其中实虚部均为独立同分布N(0, σ2)的高斯随机数，则该通道合成信号x(m)=s(m) + n(m)，其中信噪比为：
SNR = 10 lg[1/(2σ2)] = – 3 – 10 lg(σ2) (dB)
-The spacing of t
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通过利用雷达脉冲宽度与信噪比关系公式，分析雷达在三咱不同检测目标距离下的信噪比与脉冲宽度关系。-Through the use of the radar pulse width of the signal-to-noise ratio relationship formula to analyze the radar in three different detection target distance we signal-to-noise ratio and pulse width rela
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Traditional single particle reconstruction methods use either the Fourier or the delta function basis to represent the particle density map. We propose a more flexible algorithm that adaptively chooses the basis based on the data. Because the basis a
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正交频分复用光纤通信系统信噪比理论值计算-Orthogonal frequency division multiplexing with a theoretical value of the optical fiber communication system signal-to-noise ratio calculated
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MIMO技术，信噪比SNR和误码率BER的关系对比图像，MATLAB仿真程序代码-MIMO technology, signal-to-noise ratio SNR and bit error rate (BER) the relationship between contrast images, MATLAB simulation program code
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Matlab 信噪比 基于OFDM系统的M2M4的信噪比估计-Matlab signal-to-noise ratio
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BER verses SNR in ofdm with amplifier:
The BER performances of OFDM systems over the AWGN channel are given
by the BER where N=512. We see that SNR required for BER=10-3
No channel coding scheme is adopted. Therefore, BER
is a bit higher. The
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在信噪比不断变化，给出虚警概率的前提下，当给定一信噪比值后，检测概率的变化情况。-Signal-to-noise ratio changing, given the premise of the probability of false alarm, when given a signal-to-noise ratio values, the probability of detection of changes.
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用matlab编程工具，编写具有操作界面的应用程序，通过菜单、对话框，选项框等界面控制，对算法进行演示。需要在应用系统中实现的算法及功能包括：
1、图像增强算法
（1）灰度线形变换：亮度及对比度可以调节（通过控制参数的改变，能够实时预览变化结果）；
（2）直方图均衡：可在界面上对比均衡前后的效果。
2、图像变换算法
（3）对一幅彩色图像进行DCT变换和反变换，对比结果和原图；
（4）仅保留左上角16X16的DCT系数，进行反变换，计算结果图的信噪比SNR。
3、图像分
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tgrr yggg ggg yttt
Space time block coding (STBC) and beamforming
techniques are two emerging technologies that can be
employed at base station with multiple antenna to provide
transmit diversity and beamforming gain to increase signal-to-
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