Description: 在论坛上经常有朋友求关于信号上下包络的程序。
本程序为本人编写的一个matlab程序。-at the forum frequently for friends on the next signal envelope procedures. The procedures for the preparation of the one I Matlab procedures. Platform: |
Size: 802 |
Author:肖肖 |
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Description: 一种有效的包络线算法，可以实现很多情况下的振动信号的包络线生成。-an effective envelope algorithm can achieve many of the vibration signal envelope generation. Platform: |
Size: 8192 |
Author:阿木 |
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Description: 在论坛上经常有朋友求关于信号上下包络的程序。
本程序为本人编写的一个matlab程序。-at the forum frequently for friends on the next signal envelope procedures. The procedures for the preparation of the one I Matlab procedures. Platform: |
Size: 1024 |
Author:肖肖 |
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Description: 对于移动通信系统主要有两类衰落：大规模衰落和小规模衰落。大规模衰落表示由于大范围内移动而引起的平均信号能量的减少或路径损耗。而小规模衰落则表现为两种机制：信号的时延扩展和信道的时变特性。对于无线应用，信道的时变特性是由于发射机和接收机相对移动而造成传输路径的变化。这些传播条件的变化速率影响衰落率。如果存在大量反射路径而不存在视行信号分量，此时的小规模衰落称为瑞利衰落(Rayleigh fading)，接收信号的包络由瑞利概率分布函数统计描述。这种衰落也就是这次实验我准备研究的-system for mobile communications fading there are two main categories : large-scale and small-scale fading fading. In view of large-scale decline of large scale movement of the average energy of the signal path to reduce or loss. And the decline of small-scale, it was manifested as two mechanisms : signal delay expansion and channel time-varying characteristics. For wireless applications, channel time-varying characteristics as transmitter and receiver relative movement caused transmission path changes. These conditions spread of the rate changes affect the rate of decline. If there is a large number of pathways exist without depending on the signaling component, At that time, the decline of small-scale known as Rayleigh fading (Rayleigh fading). The received signal envelope from Rayleigh Platform: |
Size: 20480 |
Author:赵景 |
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Description: 这是在matlab下实现的包络检波算法。先对信号进行调制，然后进行包络检波。-This is achieved under matlab envelope detection algorithm. First signal modulation, and then proceed to the envelope detector. Platform: |
Size: 26624 |
Author:刘天宇 |
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Description: 采用信号包络和差分方式进行信号模式识别，可对QPSK，BPSK，AM，FM方式识别-The use of signal envelope and differential mode signal pattern recognition, can QPSK, BPSK, AM, FM identified Platform: |
Size: 1024 |
Author:大坤 |
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Description: 本程序主要用于利用Matlab对信号波形包络提取进行仿真实现。-This procedure used mainly for the use of Matlab to extract the signal envelope waveform simulation implementation. Platform: |
Size: 1024 |
Author:何旭轲 |
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Description: 利用神经网络分析方法对一个给定信号的两端进行延拓，在数据的两端各得到两个附加的极大值点和两个附加的极小值点.由此利用三次样条函数得到原始信号的上下包络线和平均包络线，实现了准确的EMD分解.
-The use of neural network analysis of a signal at the two ends of a given extension to the data obtained at the two ends of the two additional maxima and minima of two additional points. This use of cubic spline function has been the top and bottom of the original signal envelope and the average envelope to achieve an accurate decomposition of the EMD. Platform: |
Size: 464896 |
Author:齐磊 |
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Description: 小学期的源程序
1．试编MATLAB程序。信号 sinc(10*t),-2<=t<=2
m(t)=
0,其它
用100hz的载波来产DSB信号并解调。完成下列工作：
画出已调信号；
求已调信号的频谱，并用图像表示。
画出解调信号；
求解调信号的频谱，并用图像表示。
2．信号
sinc2(100t),|t|≤t0
m(t)=
0, 其它
采用频率调制调制为1000HZ的载波。频偏常数为kf=50,t0=0.2。
注：（求和代替积分）
3．信号
2, t0/3>t>0
m(t)= -6, t0/3<=t<2*t0/3
0, 其它
t0=0.15,使用AM调制和包络检波解调.-Primary phase of source 1. Test procedures for MATLAB. Signal sinc (10* t),-2 < = t < = 2 m (t) = 0, the other with the 100hz signal carrier to the middle class and DSB demodulation. To complete the following tasks: Draw has been transferred signal for the spectrum signals have been adjusted, and image representation. Draw demodulation signal solving transfer spectrum signal, and image representation. 2. Signal sinc2 (100t), | t | ≤ t0 m (t) = 0, the other the use of frequency modulation of the carrier modulation for 1000HZ. Offset constant kf = 50, t0 = 0.2. Note: (sum in lieu of points) 3. Signal 2, t0/3> t> 0 m (t) =-6, t0/3 < = t < 2* t0/3 0, other t0 = 0.15, the use of AM modulation and demodulation envelope detector. Platform: |
Size: 3072 |
Author:张静 |
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Description: 学习matlab，用c语言读wav格式的必备资料；自己写的寻找一组数据的峰值点程序，提取信号包络的程序，小波工具箱-Learning matlab, using c language read wav format necessary information their search for a set of data written in the peak-point program, extract the signal envelope of the process, wavelet toolbox Platform: |
Size: 15874048 |
Author:李娜 |
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Description: 这里是信号包络提取matlab 程序，相信对解决此类问题的同仁有很大帮助-Here is the signal envelope extraction matlab program, I believe it will help people who want to solve such problems a lot. Platform: |
Size: 6144 |
Author:dyc |
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Description: 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 factors, making the mobile channel for the transmission signal in time, frequency and angle, causing a dispersion, namely the time dispersion, frequency dispersion, angular dispersion, etc., so the multipath characteristics of the channel quality of communication have an important impact, and multipath channel envelope statistical properties are the focus of our study. Depending on the wireless environment, the received signal envelope generally subject to several typical distributions such as Rayleigh, Rice distribution. In this specific multipath Rayleigh distribution channel simulation, further deepen the multipath channel characteristics understanding. Platform: |
Size: 519168 |
Author:Guo |
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Description: 对原始信号进行EMD分解及包络解调，得出包络解调谱，分析出故障频率(The original signal is decomposed by EMD and demodulated by envelope. The spectrum of envelope demodulation is obtained and the fault frequency is analyzed.) Platform: |
Size: 1392640 |
Author:mamamawumoduo |
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