satellite

This documents describes about Region of interest(ROI) in the image

Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and interpolating the channel. Channel estimation at pilot frequencies is based on LS and LMS methods while channel interpolation is done using linear interpolation, second order interpolation, low-pass interpolation, spline cubic interpolation, and time domain interpolation. Time-domain interpolation is obtained by passing to the time domain by means of IDFT (inverse discrete Fourier transform), zero padding and going back to the frequency domain by DFT (discrete Fourier transform). In addition, channel estimation based on a block type pilot arrangement is performed by sending pilots in every sub-channel and using this estimation for a

arithmetic_main alghorisem

说明：  灰色系统理论的灰色综合关联矩阵，et为大于阈值时的矩阵。(Gray gray system theory correlation matrix, et is greater than the threshold matrix.)

说明：  为断层扫描（CT）源程序，用于多点激励接受断层扫描。(To tomography (CT) of the source, for multi-point excitation accept tomography.)

This is an implementation of GPS_CA code which is simulated under Matlab.

it is a code for FCM clustering

说明：  数字图象处理冈萨雷斯MATLAB源程序工具箱,包含数字图像处理各种算法(Digital Image Processing Gonzalez source MATLAB toolbox that contains a variety of digital image processing algorithms)

ANALYSIS FILTER BANK OF IMAGES

useful for INS simulation