Description: 计算图像调制传递函数（MTF）。提高图像清晰度。可以处理普通图像以及卫星照片-Calculation of image modulation transfer function (MTF). Improve image clarity. Can deal with ordinary images and satellite photos Platform: |
Size: 5120 |
Author:吴昀昭 |
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Description: 这是国外关于卫星导航方面一书的源代码，相信对初学者会有很大的帮助，里面包含位置计算、星历计算、模糊度计算等功能。-This is the foreign aspects of satellite navigation on the book s source code, I believe there will be a great help for beginners, which contains the location of computing, ephemeris calculation, calculation of ambiguity functions. Platform: |
Size: 1490944 |
Author:chenpo |
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Description: 读取renix格式的卫星星历文件，支持原始网络下载文件，阿紫泰克软件转换的星历文件，将数据存在数组中待计算-Read format renix satellite ephemeris files, support for the original network to download documents, Tektronix阿紫conversion software ephemeris file to the data array to be calculated Platform: |
Size: 1024 |
Author:huangjie |
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Description: 这是书上的代码，Visual C++和Matlab混合编程实现卫星遥感影像的三维显示，供大家参考-This is the book code, Visual C++ And Matlab Matlab satellite remote sensing images of three-dimensional display, for your reference Platform: |
Size: 359424 |
Author:min |
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Description: 主要是关于GPS卫星C/A码信号的产生、捕获以及跟踪的S曲线图，还有科斯塔斯环的一个实例。-Mainly on the GPS satellite C/A code signal generation, capture and track the S curves, there is an instance of Costas Loop. Platform: |
Size: 5120 |
Author:qiyongqiang |
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Description: 就通信系统而言，涉及到有线信道及非卫星无线信道的问题时，信道不再可以看成为恒参信道，信号往往是通过未知信道传播，通常把这样的信道称为盲信道。 本源代码对盲信道的参数进行估计，利用matlab仿真，对做盲信道的工程人员有一定的借鉴价值。-On communications systems, related to non-cable channels and the issue of satellite radio channel, channel no longer can be seen as a channel Constant reference signal is often spread through unknown channels, usually channel such as the blind channel. Source code for the blind channel estimation of the parameters, the use of matlab simulation, on the blind channel to do the engineering staff from a certain value. Platform: |
Size: 2048 |
Author:Jackson |
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Description: GPS C/A code generation module for all the 32 satellite-GPS C/A code generation module for all the 32 satellite Platform: |
Size: 1024 |
Author:Kamelab |
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Description: GPS信号的产生代码
供大家参考 对于卫星导航的初学正很有借鉴价值-GPS signals have a code for your satellite navigation for the beginner is the value of referential Platform: |
Size: 2048 |
Author:Leonard |
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Description: 这是求解用户位置的MATLAB函数代码,可以通过设定卫星的坐标,模拟仿真用户的位置-This is the location of the user of the MATLAB functions for solving the code, you can set the satellite coordinates, the location of the user simulation Platform: |
Size: 1024 |
Author:伏虎 |
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Description: 一个GPS课程的全部代码，含有数据！很实用-MATLAB GPS SCRIPTS-- Charles Meertens and Doug Miller, U. Utah 3Jan95
These scripts were developed for/during a class in GPS and Active Tectonics
Department of Geology and Geophysics, U. Utah, Spring, 1994
EXAMPLE RINEX Files (the only ones guaranteed to work this release)
CUR10911.94N
CUR10911.94O
PAR10910.94N
PAR10910.94O
Main Program scripts:
gpshora.m -- function to calculate Modified Julian Day, Homework#1
HW2.m -- Homework#2 read RINEX observation file and plot C/A code vrs. time
HW3_plt.m-- Homework#3 read RINEX navigation file, plot satellite positions
HW3_3dplt.m-- Same as HW3_plt.m, but 3d position plots
HW4.m-- Homework#4 calculate and plot station position as function of time
Functions called:
calc_nav.m-- calculate satellite position
calc_pos1.m-- calculate station position
constants.m-- GPS constants
coords.m-- convert x,y,z coordinates to lat, long, height
date2j.m-- calculate MDJ
eccenr.m-- calculate "E" anomally
read_nav.m-- Read RINEX Nav file
r Platform: |
Size: 816128 |
Author:王楠 |
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Description: 在本 GPS 软件接收机的实现中，主要针对C/A 码的捕获和跟踪算
法进行了C++代码的优化和改进，并在C++环境中调用Matlab 来实现
傅立叶变换的快速计算，将C++和Matlab 有机地结合在一起，提高了软件接收机的处理速度；使用类函数来实现大量的数组和矩阵运算，简化了程序的复杂性，提高了程序的可读性；分析所得到的卫星并从中筛选出四颗卫星来计算用户位置，提高了用户位置的精度。-In the GPS software receiver implementation, mainly for C/A code acquisition and tracking algorithm C++ code optimization and improvement, and in the C++ environment, called Matlab to implement the Fourier transform of the fast calculation, the C++ and Matlab organic together, improve the processing speed of the software receiver use the class function to implement a large number of array and matrix operations, simplify the complexity of the program to improve the readability of the program analysis of satellite and obtained from selected four satellites to calculate the location of the user to improve the accuracy of user location. Platform: |
Size: 493568 |
Author:zhouyang |
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Description: 运用matlab程序进行GPS卫星定位的matlab代码-Matlab program for the use of GPS satellite positioning matlab code Platform: |
Size: 2048 |
Author:张源 |
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Description: matlab code is designed for template matching and further extraction of water bodies from satellite images based on gradient density. code also consists of color segmentation and automatic useful cluster selections. Platform: |
Size: 303104 |
Author:Ajitpal Brar |
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Description: This code is used for Finding negative image and also used for Enhancing satellite images-This code is used for Finding negative image and also used for Enhancing satellite images.. Platform: |
Size: 2402304 |
Author:arjun |
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Description: Texture-Aware Fast Global Level Set Evolution-Due to its intrinsic advantages such as the ability to automatically handle complex shapes and topological changes, the level set method has been widely used in image segmentation. Nevertheless, in addition to be computational expensive, it has the limitation to very often lead to a local minimum because of the energy functional to be minimized is non-convex. In this work, we use the geometric active contours and the image thresholding frameworks to design a novel method for global image segmentation. The local lattice Boltzmann method is used to solve the level set equation. The proposed algorithm is therefore effective and highly parallelizable. Experimental results on satellite, natural and medical images demonstrate the effectiveness and the efficiency of the proposed method when implemented using an NVIDIA graphics processing units
The present Matlab code is the implementation of our work.
For using:
1- Open the main code (TAFGLSE.m),
2- Put the adress of the image you w Platform: |
Size: 529408 |
Author:许雄文 |
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Description: 本代码用于模拟卫星星下点在地球表面上的投影。可以在程序中给定六要素及其他相关参数，就可以利用MATLAB呈现出仿真图。-The code for a simulated satellite point on the Earth' s surface projection. May be given in the program six elements and other relevant parameters, you can use MATLAB simulation showing a map. Platform: |
Size: 35840 |
Author:王嘉靖 |
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