搜索资源列表
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fft1.用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图
2.进行FFT变换,显示各自频谱图,其中采样率,频率、数据长度自选
3.做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱
4.用IFFT傅立叶反变换恢复信号,并显示恢复的正弦信号时域波形图-fft1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and displa
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In wireless communications, fading is deviation of the attenuation that a carrier-modulated telecommunication signal experiences over certain propagation media. The fading may vary with time, geographical position and/or radio frequency, and is often
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ML estimation of time and frequency offset in OFDM systems
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Space time frequency coded mimo ofdm simulation
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PWVD在跳频信号时频分析中的应用,希望能对大家有所帮助-PWVD in the frequency-hopping time-frequency signal analysis, hoping to help all of you
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In mathematics, the discrete Fourier transform (DFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function
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利用MATLAB强大的图形处理功能,符号运算功能和数值计算功能,实现连续时间非周期信号频域分析的仿真波形;
1、用MATLAB实现典型非周期信号的频域分析;
2、用MATLAB实现信号的幅度调制;
3、用MATLAB实现信号傅立叶变换性质的仿真波形;
-The use of MATLAB powerful graphics processing capabilities, symbolic computing and numerical computing capabilitie
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录制一段个人的语音信号,并对录制的信号进行采样;画出采样后语音信号的时域波形和频谱图;给定滤波器的性能指标,采用双线性变换法和窗函数法设计滤波器,并画出滤波器的频率响应;然后用自己设计的滤波器对采集的信号进行滤波,画出滤波后信号的时域波形和频谱,并对滤波前后的信号进行对比,分析信号的变化;回放语音信号;最后,设计一个信号处理系统界面。-Record a personal voice signal, and recording the signal is sampled draw sampled
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有两个程序一个是关于frft的源程序,一个是应用frft对线性调频信号进行检测的程序,原理是以变换阶数(不同的分数阶域)为变量对观测信号进行分数阶变换,形成信号能量在时频平面上的二维分布,在此平面上按阈值进行峰值点的二维搜索即可检测线性调频信号并估计其参数。-There are two procedures one on frft the source, one application frft linear FM signal detection process, the principle
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文中的方法是把图像分块,小波分解得到低频分量、高频分量,然后计算每一块的对比度,把图像块划分为清晰块、模糊块,把清晰块和模糊块相邻的区域定义为边界区域,融合时,直接选取清晰块作为融合后的相应块,对于边界区域,在小波分解的基础上采用基于对比度的像素选取的方法进行处理。-Paper, the method is to image segmentation, wavelet decomposition are low frequency, high frequency components, then
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文章展示了一种新的方法用于功率系统中短期负载预测。提出的方案使用混沌时间序列分析基于确定性混沌去捕捉复杂的负载行为特征。确定性的混沌允许我们重构一个时间序列并决定输入的变量个数。这篇文章描述了混沌时间序列对日间功率系统峰值的分析。确定性混沌的非线性图形通过多层感知器的神经网络得到。提出的方案在一个例子中具体阐述。-This paper presents a new approach to short-term load forecasting in power systems. The
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Every thing about MIMO system and OFDM, including Matlab source, timing, frequency synchronization, equalization, estimation, PAPR, space time block code, channel capacity
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两篇时频分析的论文,时频分析技术简述与基于matlab的信号时频分析仿真,可以在编程时参考学习。-Two time-frequency analysis papers, time-frequency analysis technology brief matlab-based signal frequency analysis simulation can learn programming reference.
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运用matlab对轴承故障进行分析,获得轴承内外圈故障的时频图和功率谱-Using MATLAB to analyze the bearing fault, time-frequency diagram and power spectrum of inner and outer rings of bearing failure
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均衡技术的matlab仿真。包括时域均衡和频域均衡后的信噪比对比-Equalization matlab simulation. Including time domain equalization and frequency domain equalization SNR comparison
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由于多径效应和移动台运动等影响因素,使得移动信道对传输信号在时间、频率和角度上造成了色散,即时间色散、频率色散、角度色散等等,因此多径信道的特性对通信质量有着重要的影响,而多径信道的包络统计特性则是我们研究的焦点。根据不同无线环境,接收信号包络一般服从几种典型分布,如瑞利分布、莱斯分布等。在此专门针对服从瑞利分布的多径信道进行模拟仿真,进一步加深对多径信道特性的了解。-Due to multipath effects and the mobile station sports and other
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这是一本通过MATLAB 环境下对数字信号进行处理的英文书籍。内容包括离散时间信号,离散傅里叶变换 时频分析等。是我很喜欢的一本书-This is a book by using MATLAB programming language for digital signal processing in English.and it includes Time-Frequency Analysis
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描述了matlab基础功能和基础代码的编写,对信号在时域和频域的特点进行分析,并介绍了几种采样方法-Describe the basic function and matlab code to write, on the characteristics of signal in time domain and frequency domain analysis, and sampling method are introduced
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比较全面的时频分析教程,附带MATLAB程序(A comprehensive tutorial on time frequency analysis, with a MATLAB program)
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小波变换例程,matlab函数使用例程,时频分析等(Wavelet transform routines, matlab function use routines, time frequency analysis)
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