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Process
Signal subspace identification is a crucial first step in many hyperspectral processing algorithms such as target detection, change detection, classification, and unmixing. The identification of this subspace enables a correct dimensionality reduction, yielding gains in algorithm performance and complexity and in data storage. This paper introduces a new minimum mean square error-based approach to infer the signal subspace in hyperspectral imagery. The method, which is termed hyperspectral signal identification by minimum error, is eigen decomposition based, unsupervised, and fully automatic (i.e., it does not depend on any tuning parameters). It first estimates the signal and noise correlation matrices and then selects the subset of eigenvalues that best represents the signal subspace in the least squared error sense. State-of-the-art performance of the proposed method is illustrated by using simulated and real hyperspectral images.
- 2013-01-01 20:25:49下载
- 积分：1
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adaptive_line_enhancer
现代数字信号处理，自适应谱线增强，求解自相关函数，输入输出信号作比较。(Modern digital signal processing, adaptive line enhancement, solving autocorrelation function, input and output signals for comparison.)
- 2013-11-17 09:43:05下载
- 积分：1
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LS_esprit
测向定位 信号处理思想
ESPRIT的思想在于，将传感器阵列分解为两个完全相同的子阵列，两个子阵中每两个相对应的阵元具有相同的平移，即要求阵列具有平移不变性，每两个位移相同的阵元匹配成对。实际中许多阵列满足这个条件，比如等距直线阵。它还有一些改进演算法，如最小二乘ESPRIT (LS-ESPRIT)，整体最小二乘ESPRIT(TLS-ESPRIT)等(Finding ideological positioning signal processing ESPRIT thought that the sensor array is divided into two identical sub-arrays, two sub-arrays in each of the two corresponding array element has the same translation, which requires an array with a translation invariance, each two identical displacement picket matching pairs. Many of the actual array satisfy this condition, such as isometric linear array. It also has improved algorithms, such as least-squares ESPRIT (LS-ESPRIT), the overall least squares ESPRIT (TLS-ESPRIT), etc.)
- 2015-03-24 13:39:09下载
- 积分：1
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TUXIANGZHONGZHI
图像均值和中值滤波,利用matlab软件编写，里面有代码说明，程序运行结果(Mean and median filtering image using matlab software development, which has the code description, the program runs results)
- 2013-12-13 10:07:58下载
- 积分：1
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TickErrObsData
粗差剔除程序，采用多项式拟合的方法对时间序列中的粗差进行剔除(Excluding gross error process, using polynomial fitting method of time series of gross errors culling)
- 2020-10-15 09:17:30下载
- 积分：1
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FilteringFunctions
说明： 滤波器函数，包括圆延迟，使用圆延迟线的FIR滤波器(circular delay，FIR filter using circular delay-line buffer)
- 2009-08-07 22:26:42下载
- 积分：1
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DE-survey
differential evolution
- 2011-05-23 14:35:25下载
- 积分：1
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1
说明： 地震下结构碰撞问题，结构模态分析与虚拟激励法程序(Seismic structure of the collision problem, structure modal analysis procedure with the virtual excitation method)
- 2010-11-01 22:24:32下载
- 积分：1
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0QPSK_Simulink
说明： 无线通信系统中的常用仿真代码QPSK调制的MATLAB代码(Wireless communication systems commonly used in the simulation of MATLAB code QPSK modulation code)
- 2008-09-06 21:29:33下载
- 积分：1
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PCMcoding
是通信原理的PCM编码过程，采用均匀量化(The communication principles of PCM encoding process, using uniform quantization)
- 2010-02-22 14:15:32下载
- 积分：1
