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KUANfiltering
经典kuan滤波器,用于SAR图像相干斑抑制,提高分类精度。(The classical Kuan filter is used for SAR image speckle suppression and improve classification accuracy.)
- 2021-03-04 22:09:32下载
- 积分:1
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idl
包括影像预处理,叶绿素反演,水污染监测等功能(Including image preprocessing, water pollution monitoring and other functions)
- 2020-11-09 17:09:47下载
- 积分:1
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行星齿轮动力学分析微分方程的matlab
说明: 行星齿轮动力学分析微分方程的matlab中ode45求解(The solution of the differential equation of planetary gear dynamic analysis by ode45 in MATLAB)
- 2021-04-21 19:48:49下载
- 积分:1
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denary三角剖分
denary三角剖分算法源码,用于离散点成面,自动构建面的高级算法,该算法非常难得,希望你们有所启发。(denary triangulation algorithm source code for the discrete points into face, the face automatically build senior algorithm, which is very rare that you have inspired.)
- 2005-04-18 13:59:20下载
- 积分:1
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hausdorff111
在matlab下用hausdorff进行两幅图的匹配问题,可以得到hausdorff的距离(in Matlab using hausdorff two plans for the match, can be hausdorff distance)
- 2007-04-04 12:14:06下载
- 积分:1
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11
说明: 一个EM算法实现图像分割,可以实现彩色图像分割。(An EM algorithm is used for image segmentation.)
- 2020-06-18 21:40:01下载
- 积分:1
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HIO + ER
说明: Fienup的混合输入输出算法,是一种迭代算法,用来求相位的算法HIO(Fienup's hybrid input and output algorithm is an iterative algorithm used to find the phase algorithm HIO)
- 2018-08-03 20:04:21下载
- 积分:1
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add_noising
说明: my_noise文件是已知信号方差,加入信号噪声,可以加入高斯噪声,淑盐噪声,等其他噪声十分有用
其他两个函数时加入噪声信噪比SNR,但是有一点,这种方法并不准确,不能保证加入噪声信噪比为SNR,实际测试中可以看出,但是可以加入相同的信噪比的噪声(my_noise document is known to signal variance, by adding signal noise, Gaussian noise can be added, suk salt noise, noise, and other very useful function when the other two noise signal to noise ratio SNR, but there is one point, this method is not accurate , can not be guaranteed by adding the noise signal to noise ratio for the SNR, the actual test can be seen, but can join the same noise signal to noise ratio)
- 2008-10-06 13:19:56下载
- 积分:1
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fangfayi_main
实现约瑟夫图像置乱加密解密,完整版,可以进行图像加密解密分析(Joseph image scrambling encryption and decryption, complete version)
- 2017-05-10 11:28:00下载
- 积分:1
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能量检测法源代码
能量检测法是一种比较简单的信号检测方法[1], 属于信号的非相干的检测, 直接对时域信号采样值求模,然后平方即可得到;或利用FFT转换到频域,然后对频域信号求模平方也可得到。它无需知道检测信号的任何先验知识,对信号类型也不作限制。
实际上,能量检测是在一定频带范围内作能量积累,如果积累的能量高于一 定的门限,则说明信号的存在;如果低于一定的门限,则说明仅有噪声。能量检 测的出发点是信号加噪声的能量大于噪声的能量。能量检测方法对信号没有作任何假设,是一种盲检算法。
此代码“利用FFT转换到频域,然后对频域信号求模平方”方法来实现对用户的检测。(In fact, energy detection is used for energy accumulation in a certain frequency range. If the accumulated energy is higher than a certain threshold, the existence of the signal is indicated. If the threshold is lower than the threshold, then only noise is indicated. The starting point of energy detection is that the energy of signal plus noise is greater than that of noise. The energy detection method does not make any assumptions about the signal, and it is a blind detection algorithm.
This code "converts the frequency domain into the frequency domain by FFT, then calculates the square of the square of the frequency domain signal" to realize the detection of the user.)
- 2021-04-29 16:18:42下载
- 积分:1