GPS Navigation Toolbox by moein mehrtash

This program include Principle of Radio Navigation Calculation and GPS position error corrections. (aerospace, automotive, control design)

Delta_R_Trop=Error_Tropospheric_Hopfield(T_amb,P_amb,P_vap,...

ECEF2GPS(Pos)

XYZ2ENU(A,Phi,Lambda)

RT90 to WGS84 coordinate transformation by Marco

Conversion of geographical coordinates from the RT90 format (Sweden) to WGS84 (e.g Google Earth) (geography, maps, gps)

RT90_2_WGS84.m

Geodetic Toolbox by Mike Craymer

Toolbox for angle, coordinate and date conversions and transformations. Version 2.97. (gps, geodesy, angle)

Cct=clg2cct(Clg,lat,lon)

Clg=cct2clg(Cct,lat,lon)

R=rotct2lg(lat,lon)

Geodetic Transformations Toolbox by Peter Wasmeier

Set of tools for transformation used in geodesy, especially when using GPS or mapping (cartesian coordinates, helmert, gps)

CART=ell2cart(ELL,ellips,FileOut)

ELL=cart2ell(CART,ellips,FileOut)

ELL=lambertcc2ell(PRO,sys,UND,FileOut)

geotiffwrite by Jimmy Shen

Write a 2D or 3D array to a single or multi-band GeoTIFF file (earth sciences, dem, earth science)

geotiffwrite(filename, bbox, image, bit_depth, option)

make_option(action)

mydate by Felipe G. Nievinski

Augments MATLAB's date/time library for improved handling of epochs and formats commonly used in GPS (date, time, epoch)

convert_to_doy (epoch)

cputime_res

cputime_tol

read_teqc_compact by Felipe G. Nievinski

Reads teqc's QC compact files more rapidly -- without for loops. (gps, teqc, multipath)

iseven (x)

isodd (x)

read_teqc_compact (dir, basename, ext, elev, azim)

WGS 84 to SWEREF by Fredrik

Converts coordinates from WGS 84 (NMEA) to projected coordinates in SWEREF99 TM. (gps, mapping)

sweref.m

gps_chksum by Val Schmidt

A function to calculate the checksum for a NMEA/GPS string. (gps, nmea)

gps_chksum(rawGPS)

Error-tolerant parsing of newline-delimited data by Kevin Bartlett

Adaptive parsing of newline-separated data. Handles bad lines WITHOUT reading line-by-line. (parse, parsing, newline)

adaptive_parse(dataOrFid,parseFcnHndl,varargin)

adaptive_parse_appender_demo(parsed,thisChunkParsed,parsedP...

adaptive_parse_cleanup_demo(parsed,parsedPtrs,cleanupOption...

extended Kalman Filter(EKF) for GPS by You Chong

An easy-to-implement function of the Extended Kalman Filtering with a GPS example (ekf, gps, kalman filter)

Extended_KF(f,g,Q,R,Z,X,P,Xstate)

[Delta_Rho]=Delta_Rho_Compute(Rhoc,SV_Pos,Rcv_Pos,b);

[G]=G_Compute(SV_Pos,Rcv_Pos);

haversine by Ritchie Smith

Computes the haversine (great circle) distance in metres between successive points on the Earth. (haversine, latitude, longitude)

d=haversine(lat,long)

GPS Receiver using Xilinx FPGA and TI DSP by Dick Benson

These model files move from a system level GPS receiver channel to actual operating hardware. (gps, acquisition, timing)

ca=ca_fpga;

example_sel2html(fn,new)

GPS_Capture.m

SRTM Interpolation by Michael Melzer

The function interpolates between SRTM data points. (interpolation, dem, gps)

GetSRTMDatainterp2(LON,LAT,method)

Protection Level Toolbox by Dean Bruckner

Simulates protection levels for GPS precision approach and landing (integrity, gps, gnss)

[VPL_H0,HPL_H0,RPL_H0,C,S,D,bias_signs,H_proj_vector,...

compositePLdemo (v_or_h_flag,...

mvnlps( mu, sigma, q, e, r, re )

Satellite Orbit Computation by Charles Rino

Modified SGP4 code for GPS interface (satellite orbit, gps, satellite tracking)

IdB=dB10(I)

IdB=dB20(A)

LinkZoom(fig)

GPS Coordinate Transformations by Charles Rino

Utilities for manipulating GPS position data (coordinate transforma..., mapping, gps)

D=Rotate_ecf2tcs(origin)

EarthModel

Get_DirCos_ForwardT (A, MatrixFlavor);

TEQCFV by linda winkler

Will give graphical view of data in UNAVCO compact format from UNAVCO teqc command. (glonass, teqc, gps)

out=teqcfv(files)

NMEA 0183 Sentence Reader by Adam Leadbetter

Reads a NMEA 0183 sentence into a Matlab structure. (nmea, gps, data import)

nmealineread(nline)

Joint Frequency and Delay Correlation by Dan Boschen

2D (frequency and delay) circular cross correlation. (correlation, gps, acquisition)

fdcorr(a,b,frange)

fd_corr_demo.m

Distance between GPS points by Ramin Shamshiri

Calculates distance between two GPS coordinates through Carlson model. (gps, carlson model, precision agriculture)

DistGPS.m

velocity_triangulation.m v1.0 (Sep 2009) by Carlos Adrian Vargas Aguilera

Triangulates velocity from a 2D planar wave. (gps, wave, velocity)

velocity_triangulation(X,Y,T,TOL,varargin)

struct_read/struct_write by Val Schmidt

Functions to ease the reading and writing of C data structures from and to binary files. (c, structure, binary)

struct_read(fid,format)

struct_write(fid,format,data)

GPX file reader by karl critz

%LOADGPX Loads route points from a GPS interchange file (cycling, gps, longitude)

loadgpx(fileName,varargin)

TEQCSPEC by Clement Ogaja

TEQC multipath spectrum analysis (gps, teqc, satellite)

[d]=bandpass(c,flp,fhi,npts,delt)

bilinear(z, p, k, fs, fp, fp1)

buttap(n)

RANDPERMBREAK (v1.1, nov 2008) by Jos (10584)

randomize the order of elements within sections of a vector (rand, sections, matrix manipulation)

randpermbreak(N,BP, bpfixed)

GPS to UTC(GMT) time conversion by Ian Howat

GPS2UTC Convert GPS time tags to UTC(GMT) time accounting for leap seconds (gps, conversion, clock)

gps2utc(date0)

UTC to GPS time coverter by Ian Howat

Convert UTC(GMT) time tags to GPS time accounting for leap seconds (gps, gmt, utc)

utc2gps(date0)

BOC(Binary Offset Carrier) by Salim

BOC generator (boc, gps, galileo)

bocg

the correlation of code PRN by Salim

this file contains files *.mdl and *.m one can with calculating the PRN of 24 satellites GPS to see (gps, correaltion, mdl)

f=deca(v)

correl.m

correlation

Olin Robotics Blockset for xPC Target by John Kluza

xPC Target drivers for common robotics devices with example models. (drivers, gps, robotics)

slblocks

LMS291_ChangeTo500KBaudRate.m

LMS291_Init.m

UK Postcode to Lat/Long for GPS by Yi Cao

A small tool to convert a UK postcode to Lat/Long degrees for GPS (gps, longitude, latitude)

[lat,long]=ukpostcode2latlong(postcode)

Date Conversion Utility GUI by Chad Webb

A GUI utility to compute calendar date, GPS time, Julian day, and day of the week (gps, gregorian, julian)

GUI_DateConversions(varargin)

TIMESPLITRINEX by Ian Howat

Break up a RINEX GPS file by a length of time (rinex, gps, short)

timesplitrinex(filename,seconds)

Two Dimensional GDOP by Justin Teems

GDOP Psuedocolor Values and Plot (gdop, pseudocolor, multilateration)

gdopContour(xmin, xmax, ymin, ymax, SVs)

TEQCPLOT by Jim Hedfors

Read and plot TEQC report files (teqc, gps, satellite)

out=teqcplot(files);

4BNoise by Giampiero Campa

MultiBand (GPS) Noise (gps, limited, simulink)

gpsnoise

dmgps by Cuneyt Aydin

dmgps sets the design matrix of a GPS network whose baselines are definable. (gps, leastsquares adjustme..., design matrix)

A=dmgps(fromto,pnt,fixpnt)

Sun Azimuth Data by Khalil Sultan

A script for generation of an ASCII File (Report) containing Sun Azimuth Data. (script, ascii, data)

formatchange(decimalvalue)

sun_position(time, location)

validate(useryear,usermon,userday,userhour,usermin,usersec)