Description: This diskette (version 1.0) contains demonstration programs and source codes in MATLAB (v.5.2) for algorithms listed in the textbook Global Positioning Systems, Inertial Navigation, and Integration, by M. S. Grewal, Lawrence Weill, and A. P. Andrews, published by John Wiley and Sons, 2000.
Contents: MATLAB (Version 5.2) Demonstrations & Scripts
Chapter4
ephemeris.m calculates the GPS satellite position in ECEF coordinates from its ephemeris parameters.
Chapter5
Klobuchar_fix.m calculates the ionospheric delay.
Chapter6 (shows the quaternion utilities) Platform: |
Size: 12823 |
Author:gaoxu |
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Description: kalman滤波GUI(matlab6.5)
m代码在m_files目录中，主函数为fildis
执行独立exe时，需..\bin\win32下的dll支持.可以在autoexec.bat中加入此目录,
也可将dll文件拷出放入同一目录下，对于独立exe若要从mat文件初始化，mat文件目录全名需无中文字符。
可以作为设计各种kalman滤波器的开发导航，参数可以自己设置。-Kalman filtering GUI (matlab6.5) m in m_files code directory , the main function of an independent fildis exe, need .. \ bin \ dll under win32 support. in the autoexec.bat to add this Contents may also be dll Add document beat out the same directory, independent exe To initialize the document from the mat, mat directory full name needs no Chinese characters. Can be used as the design of the Kalman filter developed navigation, their parameters can be set up. Platform: |
Size: 52224 |
Author:horfort |
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Description: 本文的题目是改进的粒子滤波在组合导航中的应用研究。文档可用caj打开。
本课题首先研究了GPS/DR车载定位系统的组合模型，然后在分析了非线性滤波的基础上，引入了粒子滤波。粒子滤波是一种基于递推计算的序列蒙特卡罗算法，它采用一组从概率密度函数上随机抽取的并附带相关权值的粒子集来逼近后验概率密度，从而不受非线性、非高斯问题的限制。虽然粒子滤波存在诸多优点，然而它仍然存在诸如粒子数匿乏、滤波性能不高、实时性差等问题。-The title of this article is to improve the particle filter in the navigation of the applied research. CAJ can be used to open the document. This issue initially on the GPS/DR Vehicle Location System portfolio model, and then the analysis of nonlinear filtering based on the introduction of a particle filter. Particle filter is a recursive calculation based on Sequential Monte Carlo algorithm, it uses a set of probability density function from random samples and weights attached to the relevant set of particles to approximate a posteriori probability density, and thus not subject to non-linear, the issue of non-Gaussian constraints. Although there are many advantages of particle filter, yet it still exists, such as particle number Punic poor, filter performance is not high, real-time poor. Platform: |
Size: 5165056 |
Author:阳关 |
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Description: 本压缩文件包含GPS量测数据仿真和惯性导航解算以及卡尔曼滤波在导航解算中的应用-The compressed file contains the GPS measurement data simulation and inertial navigation and Kalman filter solver solver in the navigation application Platform: |
Size: 11264 |
Author:neargdd |
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Description: This diskette (version 1.0) contains demonstration programs and source codes in MATLAB (v.5.2) for algorithms listed in the textbook Global Positioning Systems, Inertial Navigation, and Integration, by M. S. Grewal, Lawrence Weill, and A. P. Andrews, published by John Wiley and Sons, 2000.
Contents: MATLAB (Version 5.2) Demonstrations & Scripts
Chapter4
ephemeris.m calculates the GPS satellite position in ECEF coordinates from its ephemeris parameters.
Chapter5
Klobuchar_fix.m calculates the ionospheric delay.
Chapter6 (shows the quaternion utilities) -This diskette (version 1.0) contains demonstration programs and source codes in MATLAB (v.5.2) for algorithms listed in the textbook Global Positioning Systems, Inertial Navigation, and Integration, by MS Grewal, Lawrence Weill, and AP Andrews, published by John Wiley and Sons, 2000.Contents: MATLAB (Version 5.2) Demonstrations Platform: |
Size: 12288 |
Author:gaoxu |
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Description: Matlab GPS Toolbox，坐做仿真的时候比较有用-Matlab GPS Toolbox, take the time to do more useful simulation Platform: |
Size: 43008 |
Author:czmxyxbp |
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Description: gps导航工具包，可用于分析GPS误差，伪距及导航融合算法-This report include the review of
• Principle of Radio Navigation: navigation base on trilateration has been investigated and the over determined Eq. for navigation has been solved.
• GPS Ephemeris Data: for GPS navigation, the position of GPS satellite is very important so the by receiving ephemeris data the position of the satellite is determined.
• GPS Errors: Three different sources of errors in GPS navigation has been investigated (Ionosphere, Troposphere and Satellite clock). Ionospheric Error model is generated base on Parkinson [1] and the Tropospheric Error Model based on Hopfiel model [2].
• Simulation & GPS Toolbox: One of the targets of this work is generating Matlab GPS Toolbox and in one case study the performance of generated toolbox will be verified. Platform: |
Size: 1051648 |
Author:guoq |
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Description: Software-defined radios (SDRs) have been around for more than a decade. The
first complete Global Positioning System (GPS) implementation was described
by Dennis Akos in 1997. Since then several research groups have presented their
contributions.We therefore find it timely to publish an up-to-date text on the subject
and at the same time include Galileo, the forthcoming European satellitebased
navigation system. Both GPS and Galileo belong to the category of Global
Navigation Satellite Systems (GNSS). Platform: |
Size: 1932288 |
Author:moatasem momtaz |
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Description: 用matlab编写的GPS卡尔曼滤波跟踪算法，可用于GPS导航里目标跟踪估计等，非常好用！-Prepared using matlab GPS Kalman filter tracking algorithm can be used for GPS navigation in target tracking estimation, very easy to use! Platform: |
Size: 1024 |
Author:和平 |
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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: GPS单点定位和差分定位程序及详细说明，始于初学者学习GPS导航定位原理。-GPS single point positioning and differential positioning procedures and detailed instructions for beginners to learn GPS navigation began in principle. Platform: |
Size: 187392 |
Author:王蕾 |
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Description: 本书采用软件接收机的观点，详细介绍了GPS接收机原理，涉及软件无线电和GPS两个热门领域。GPS接收机包括直接序列扩频信号接收技术和导航处理两个学科内容，涉及卫星星座及GPS信号的影响、信号捕获跟踪、导航电文解扩接收、伪距测量、定位和导航计算处理等内容。本书第2版增加了3章新的内容，主要涉及微弱信号和强干扰环境下，GPS接收机的处理方法。本书还附列了许多用Matlab编写的计算机程序，帮助阐明某些思想，一些可直接用于接收机的设计-This book uses software receiver s point of view, described in detail GPS receiver principle, relates to the software radio and GPS two hot areas. GPS receiver including direct sequence spread spectrum signal receiving technology processing and navigation in two disciplines, relates to the satellite constellation and the influence of GPS signal, signal acquisition and tracking, navigation message despreading reception, pseudo distance measuring, positioning and navigation calculation etc.. Book Second Edition adds 3 new section, mainly involving the weak signal and strong interference environment, GPS receiver processing method. The book also annexed many written using Matlab computer program, to help clarify some ideas, some can be used directly in the design of receiver Platform: |
Size: 6455296 |
Author:单边 |
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Description: 本文以GPS中频数字信号的仿真为目标,以Matlab/Simulink为平台,对真实环境
下中频信号的生成算法!接收算法进行了研究和仿真实现"论文详细论述了GPS中频
数字信号的数学模型!导航信号的误差模型,和信号仿真时应注意的关键问题,给出了
中频信号软件模拟器结构"同时,论文对中频信号的接收算法也进行了简单的研究,并
用仿真生成的数字中频信号对软件接收机的捕获和跟踪性能进行了验证"实验结果表明
该系统基本实现了GPS中频信号的产生和接收功能,接收端能正确解扩解调,能在一
定精度下得到伪码初始相位和载波频率"
-GPS IF digital signal simulation in Matlab/Simulink platform, the paper discusses in detail the mathematical model of the GPS IF digital signal received IF signal generation algorithm in a real environment! Algorithm research and simulation! Navigation error model of the signal, and the signal simulation should pay attention to the key issues, given the structure of the IF signal simulator software the same time, the paper also the IF signal reception algorithm simple, and digital IF signal generated by the simulation software The receiver acquisition and tracking performance is verified experimental results show that the system is the basic realization of the GPS IF signal generating and receiving functions, the receiving side can correctly despread demodulation, the initial phase and carrier frequency of the pseudo-code can be obtained under certain precision " Platform: |
Size: 5351424 |
Author:luchan |
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