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MAP
通信仿真,二元位信号通过加性高斯白噪声的信道,经过匹配滤波,最大后验概率和最大似然概率检测比较(Communication simulation, binary bits signals through the additive gaussian white noise, through the channel is matched filtering, maximum a posteriori probability and the maximum likelihood detection probability)
- 2010-06-16 22:30:05下载
- 积分:1
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ds-cdma-matlab
CDMA程序,包括DS扩频等,个人觉得还不错。(CDMA procedures, including the DS spread spectrum, etc., individuals feel good.)
- 2010-12-03 20:50:31下载
- 积分:1
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2D
说明: 用MATLAB开发的程序代码,模拟电磁波在二维空间的传播特征。(With the MATLAB code developed to simulate the spread of electromagnetic waves in two-dimensional feature space.)
- 2021-01-19 10:28:43下载
- 积分:1
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MATLAB-getrect
matlab 鼠标从一幅图像中截取一个区域,并生成一幅图片(get a picture form a picture)
- 2013-11-27 16:13:19下载
- 积分:1
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A-DDE-Algorithm
一种基于红外图像分层处理及动态压缩的 DDE 算法。该算法先将原始14bits 红外图像数据信息中的大动态低频背景和小动态高频细节进行分离提取,并分别对提取的细节层和背景层进行相应的灰度增强和灰度抑制处理,再调整和压缩各图层的动态范围并最终合成 8bits图
像。实验结果表明,该算法能较好地保留并突出原始红外图像中的边缘和细节信息,达到了预期设计的目标。
(put forward a DDE algorithm based on hierarchical processing and dynamic compression of infrared image. At first,this algorithm dissociates the background ( with wide
dynamic and low frequency) and the detail ( with narrow dynamic and high frequency) in the data information ( 14 bits) of original infrared image,and pick up them respectively. Then,it enhances the
gray of details layer and restrains the gray of background layer,and readjusts and compresses dynamic range of each layer. Finally,it composites output image ( 8 bits) . The experimental results show that the proposed algorithm can retain detail information and edges in original infrared image and carry the
purpose of design.
)
- 2021-01-15 22:38:46下载
- 积分:1
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LiNb_Modulator_Settings
optisystem13相干通信的例子,非常实用,已经验证过!(Optisystem13 coherent communication examples, very practical, has been verified!)
- 2015-10-30 20:02:20下载
- 积分:1
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最大似然
说明: 两种不同的假设:
H1 : 0 xn A fn wn ( ) cos(2 ) ( ) = ++ π θ n=1,2,…,N,f0 为规一化频率
H0 : xn wn () () = n=1,2,…,N
其中 w[n]是均值为 0,方差为 2 σ n 的高斯白噪声,A 已知,样本间相互
独立,信号与噪声相互独立; 相位θ 是随机变量,它服从均匀分布
1 0 2 ( ) 20 p
θ π θ π ?? ≤ ≤ = ??? 其它
1)改变输入信噪比(改变 A 或噪声方差均可),给定虚警概率,画出
输入信噪比与检测概率之间的理论曲线。(注意:理论检测曲线与样本
数有关) 2)改变样本数,用 Monte-Carlo 实验方法得出 PF=0.001 时输入信噪比
与检测概率之间关系曲线(至少三条),并得出结论。 3)改变 M-C 实验次数,样本数不变,用 Monte-Carlo 实验方法得出 PF =0.001 时输入信噪比与检测概率之间关系曲线(至少三条),并得出
结论(Draw the theoretical curve between input SNR and detection probability)
- 2020-01-03 22:32:15下载
- 积分:1
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somepictures
Some special graphs drawn in Matlab,hope to use and helpful.(Some special graphs drawn in Matlab, hope to use and helpful.)
- 2010-08-25 14:36:16下载
- 积分:1
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baud
说明: 将外部的输入的6Mhz的信号分成为频率为153600hz的信号(The external input signal divided into 6Mhz 153600hz signal frequency)
- 2010-04-11 23:16:18下载
- 积分:1
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Matlabtool
说明: 基于matlab的退火算法的工具箱,本人近期在用,感觉还不错(Based on the annealing algorithm matlab toolbox, I recently used, I feel pretty good)
- 2008-11-11 15:00:03下载
- 积分:1