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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)
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Size: 12823 |
Author: gaoxu |
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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
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Size: 12288 |
Author: gaoxu |
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Description: gps GPS matlab GPS lab ephemeris.m matlab gps toolbox gps toolbox Software Receiver
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Size: 1991680 |
Author: Ivan |
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Description: 研究无源北斗定位技术的目的，在于解决目前北斗定位体制下，存在用户数量受限、用 户机需发射信号、定位数据更新率慢等缺点。利用现有的2颗北斗地球同步卫星、1颗备份卫星的 星历信息以及测量获得的时差信息，可以推导出实现无源定位的数学模型。该方法通过试验数据 获得了50 m范围的定位结果，从而验证了该项技术的正确性-The purpose of the passive Beidou, is to solve the current Beidou system, there is the number of users limited user machine needs to transmit signals, slow update rate of positioning data shortcomings. Use of the existing two Beidou geostationary satellites and a backup satellite ephemeris information and measuring the time difference information can be deduced from the mathematical model of the passive location. The test data to obtain the positioning results of the 50 m range, which verifies the correctness of the technology
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Size: 148480 |
Author: jiany |
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Description: 对载波相位平滑伪距的原理和数据预处理进行了探讨,给出提高其定位精度的处理方法和流程。通过
两个算例得到如下结论:对C1和P2码进行相位平滑可有效提高伪距定位精度,较长时间观测定位精度可达1 m
左右,利用精密星历改进后,平滑伪距的定位精度可达0. 5 m左右 对P1和P2码进行相位平滑对定位精度提高不
大,较长时间观测平滑前后的定位精度均可达到0. 6 m,利用精密星历改进后,精度可达0. 3 m 在动态测量后处理
中,绝大部分历元利用精密星历结合相位平滑的定位精度可达2 m。
-The principle and data preprocessing ofcarrier smoothed pseudorange are discussed and themethod
which can improve the positioning accuracy and its flow are given.W ith thismethod two computation examples are
made.The results show tha:t 1)the accuracy can be improved efficiently by using smoothed C1and P2pseudorange
in static data processing, the accuracy can reach 1m if the time is long and can attain 0. 5m if the precise ephem-
eris is taken 2)the accuracy can be boosthardly by using smoothed P1and P2pseudorange, but the accuracy can
be improved from 0. 6m to 0. 3m if the time is long enough and the precise ephemeris isused 3)mostepochs can
reach to the accuracy of2 m precision in kinematic positions if the smoothed code and precise ephemeris are uti-
lized.
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Size: 292864 |
Author: wangmingxiao |
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Description: 通过matlab编程 进行GPS单点定位进行测速来反映所测地点晃动情况，采样数据1s（1Hz）
loadobsrinex.m 为接收机即所用GPS得到的监测数据，loadrinexGpsn.m GPS星历数据，single_v_main1.m是主程序，还有其他消除误差程序。-Through matlab programming for GPS single point positioning speed to reflect the test place moving situation, and the sampling data 1 s (1 hz)
Loadobsrinex. M for monitoring data, used the GPS receiver got loadrinexGpsn. M GPS ephemeris data, single_v_main1. M is the main program, and other procedures to eliminate error.
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Size: 12449792 |
Author: wuyachao523 |
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