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BERfangzhen
在这个例子中，我们对有三条固定路径的AWGN多径信道中的QPSK系统进行BER性能仿真，并与在理想的AWGN信道（没有多径）中同样系统的BER性能进行比较。(In this example, we have three fixed-path multipath AWGN channel QPSK system BER performance simulation, and in an ideal AWGN channel (no multipath) in the same system BER performance comparison Progressive line.)
- 2009-03-19 11:22:01下载
- 积分：1
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matlab7.0
精通matlab7入门书籍，做数模或者很多方面都需要用到(Proficient matlab7 introductory books and do a few modules, or many aspects need to use)
- 2010-12-29 16:57:50下载
- 积分：1
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Rayleigh_vir
说明： 仿真通过利用虚拟信道模型而产生瑞利衰落信道(rayleigh)
- 2010-03-30 10:20:12下载
- 积分：1
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zgx
MATLAB的GUI制作例子，用MATLAB7.0打开.(MATLAB GUI examples produced using MATLAB7 open.)
- 2007-04-23 18:02:05下载
- 积分：1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。
改用其他窗函数（非矩形）改善泄漏。
3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分：1
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matlab
用快速傅里叶变换实现图像融合，将一个人脸上的妆融合到另一个人脸上(With fast Fu Liye transform image fusion, a person will face makeup into another face.)
- 2013-11-29 11:15:03下载
- 积分：1
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MDS-MAP
无线传感器网络中MDS-MAP定位算法的Matlab代码(Matlab code of the wireless sensor network localization algorithm MDS-MAP)
- 2011-06-28 13:49:20下载
- 积分：1
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Numerical-Techniques-in-EM
电磁场中的数值方法，本书包含所有的电磁场方面使用的数值方法，且有丰富的代码（FORTAN 和 C++），本书是英文版的(Electromagnetic field numerical methods, the book contains all of the numerical methods used in electric fields, and there is a wealth of code (FORTAN and C++), the book is in English)
- 2014-02-06 03:18:48下载
- 积分：1
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powerr_PSS
Power System Stabilizer Based On Fuzzy Logic Controller
- 2010-10-15 03:49:29下载
- 积分：1
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chinese_ver
用matlab中的guied 制作的用于 数值分析课程教学的 数值实验平台，包括插值法、样条法、分段解析法等(Create with the guied in the matlab of used for the number experiment of number analysis course teaching platform, include to put to be worth method and kind method, and cent segment resolution method...etc.
)
- 2012-11-26 13:41:05下载
- 积分：1
