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wodewodewode
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 )
- 2007-06-20 23:44:47下载
- 积分：1
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sac-101.5c-linux_x86_64.tar
地震数据格式之间的转换，sac，miniseed，seed，这些数据格式进行转换(Seismic data conversion between formats, sac, miniseed, seed, the data format conversion)
- 2013-10-17 09:57:44下载
- 积分：1
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manifold-learning
流形学习8中方法，可自由选择种类、参数，欢迎下载、讨论(8 manifold learning methods are free to choose the type of the parameter)
- 2014-11-08 16:43:30下载
- 积分：1
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jieyue-signal
阶跃信号与正弦信号调制，在同一张图纸上绘制四个子图。这是一个很基础的编程应用。(Step signal with a sinusoidal signal modulation, drawn with a drawing on four subgraphs. This is a very basic programming application.)
- 2013-03-20 20:07:36下载
- 积分：1
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PID
使用matlab设计PID控制器消除系统静态速度误差的方法，主要使用等幅振荡法,并通过WORD给出了传递函数。(PID controller design using matlab static speed error elimination systems approach, the main use of the oscillation amplitude France, and through the WORD gives the transfer function.)
- 2013-10-29 20:54:26下载
- 积分：1
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0100000069_supp
with development of embedded adaptive controllers for mimo scheduling.
- 2014-02-25 14:59:33下载
- 积分：1
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code44
正交码的编吗程序，可达到满分集增益，编吗速率可达到3/4，()
- 2007-07-26 10:50:19下载
- 积分：1
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single_pulse_ambg
单脉冲雷达信号的波形的产生和其模糊函数的计算，以及模糊函数的图形。(Single-pulse radar signal waveform generation and the calculation of its ambiguity function, and the ambiguity function of the graphics.)
- 2010-09-04 21:20:48下载
- 积分：1
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tower
自己写的，很有心得，还往大家多多支持，谢谢！(Write your own, very learned, but also to the generous support of everyone, thank you!)
- 2009-12-15 19:56:01下载
- 积分：1
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maichongyasuo
脉冲压缩雷达的优点是能获得大的作用距离和具有很高的距离分辨力。(The advantage of pulse compression radar is that it can obtain large range of action and have high distance resolution.)
- 2018-02-07 10:48:14下载
- 积分：1
