GPS TOOLBOX is a library of MATLAB m-file modules and programs used for
the implementation of Global Positioning System (GPS) applications. GPS
TOOLBOX enables you to simulate a specific GPS application quickly and
easily without the need to code and test the basic GPS algorithms.

All of more than 200 m-files are compatible with MATLAB version 5.0 and
higher, and most of them are also compatible with previous versions and
Student Edition of MATLAB.

A complete (more than 200-pages) user's guide and reference manual contains
detailed documentation for each module/program included in the library.

There are more than 31 fully explained examples (in excess of 80 pages)
with input and output data, and generated plots.

The major building functions of the GPS TOOLBOX are divided in the
following categories:

GPS related constants and conversion factors
Angle and coordinate transformations
Specialized plotting programs
Specialized statistics related functions
Special signal processing and Kalman filter functions
GPS time utilities and related functions
GPS almanac and other data processing functions
Trajectory and related utilities
Satellite position and velocity computation
Elevation and azimuth determination, and satellite visibility
DOPs computation, satellite selection and related functions
Pseudorange and deltarange determination, and related functions
Determination of user’s position and related functions
RINEX 2 data processing and position determination
Basic and advanced RAIM/FDE functions
GPS receiver evaluation functions

What is new in version 4 of GPS Software Toolbox

Here is the list of main upgrades and changes:

A complete RINEX 2 data processing, including the position determination
GPS receiver specialized functions, including pseudorange and carrier phase analysis, covariance analysis for a 5-state and 8-state GPS receiver models, pseudorange smoothing based on carrier phase data
Reorganization of RAIM/FDE function in basic and advanced sections and the inclusion of HPL/VPL and HEL/VEL determination and related functions
Additional functions in many prior subsections, e.g. satellite velocity computation, SEM almanac processing
A complete directory containing test examples (softcopy) for all main programs
An expanded section containing more relevant GPS examples

The MATLAB source code is royalty free, i.e. the user can use this software in his/her particular application but is not permitted to resell the software as is or with changes. Please read carefully the software license agreement before using the software.