fft

Business Economics & Finance with Matlab GIS and Simulation Models

说明：  包含角点提取功能能够进行摄像机标定及图像修正的matlab程序，考虑径向畸变，薄透镜畸变。(Corner detection features include camera calibration and image can be modified matlab program, consider the radial distortion, thin lens distortion.)

本程序将时域数据转换为频域（功率谱密度），方便数据的处理和分析。(The program time-domain data is converted to the frequency domain (power spectral density), to facilitate the processing and analysis of data.)

说明：  基于FFT的rife算法的改进型，实现对频率的估计(Based on FFT improved RIFE algorithm, frequency estimation is realized)

压缩包包含4个天线选择算法的仿真，最佳选择，范数选择，递增选择和递减选择(Compressed package includes four antenna selection algorithm simulation, the best choice, norm selection, increasing choice and decreasing options)

在地震反演中需要进行流体替换的研究，流体替换中用到了gussmannn方程(Fluid replacement in the seismic inversion model, the three-tier model, fluid replacement used the gussmannn equation)

I used the newpnn function to create a PNN, then used the sim function to classify the the training data set, which was used to create the neural network.

低轨卫星侦查确定地面目标位置，整周模糊计算(GRSS system)

说明：  用fft进行特征提取，并画出相应的图。再进行神经网络分类(FFT is used to extract features and draw corresponding graphs.)

稀疏分解在LFM信号模型的应用，稀疏分解应用在低信噪比的情况下，能够很好的恢复原信号(mp—LFM)