Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [rinex]

Receiver Independent Exchange (RINEX) Format is a data interchange format for raw satellite navigation system data.

0
votes
0answers
14 views

Determining when next Ephemeris update is scheduled?

I am retrieving precise ephemeris data from an open online service. They claim to be updating the ephemeris of the satellites every 3 hours as the parameters are broadcasted from the satellites. How ...
1
vote
1answer
41 views

Reading RINEX formatted streams

I'm playing around with a public NTRIP caster but I'm very new to all this. I'm using BKG Ntrip Client to read the stream and the file I get has around 45 lines for each sample. Each line begins with ...
0
votes
2answers
61 views

DGPS for Single Epoch?

Usually for post processing DGPS in any technique (RTK - Carrier phase, Pseudorange code) the RINEX files used contains data for many consecutive epochs. This leads to very large RINEX files. Is it ...
0
votes
2answers
82 views

DGPS Pseudorange code vs Carrier phase: What fields from the RINEX actually used?

The basic RINEX epoch measurement looks like: Pseudorange, Carrier phase, Doppler, SNR (In that order?) Is this correct for post processing: Using Pseudorange code technique (RTKLIB positioning ...
1
vote
1answer
165 views

approximation position in RINEX file header

In RINEX observation file header, there is a line with APPROX POSITION XYZ label. Value of this line is approximate marker position in geocentric coordinate-system (unit: meter). Following Example ...
0
votes
0answers
124 views

OS Rinex antenna names and offsets in Leica Geo Office 8

I am post processing dGPS data in Leica Geo Office 8. One of the RINEX station antennas I am using (APPL - Appledore) has no offset or correction information. The antenna name and IGS name are ...
0
votes
2answers
377 views

Rinex Header GPS Position Coordinate System

I am extracting data from rinex observation files and would like to convert the approximate position to latitude and longitude using Proj.4. The rinex standard states that these coordinates are WGS84, ...
2
votes
2answers
760 views

Postprocessing with NMEA-data if no rinex-data is available

I have an UAV which does not give me the raw sensor data (e.g. rinex or ubx). The only format I get is NMEA. Now I want to know how could I use the NMEA-data to get the highest precision of my ...
1
vote
1answer
247 views

PPP GPS Understanding Messages

I have set up a Raspberry PI with a RasPiGNSS GPS-Module. After some binary convertion I get the following RINEX(ftp://igs.org/pub/data/format/rinex210.txt) files. .nav .obs .sbs I'm a little ...
1
vote
1answer
722 views

How to achieve optimal accuracy with RINEX post-processing for Bad-Elf or Ublox GNSS L1-only receivers?

I have a Bad-Elf Surveyor (with what I’m pretty sure is a ublox Neo-7P module) and am experimenting with the kind of accuracy I can get from it by collecting raw data logs (RINEX) from the Bad-Elf app....
1
vote
1answer
637 views

SSF to RINEX problem

I used Pathfinder office 4.2 to export GeoXH data into RINEX format. It works right when I have only 1 point feature, however when I have multiple point features I get only 1 point feature in the ...
0
votes
1answer
501 views

How is user range error (URE) calculated/estimated in a basic receiver?

For a basic receiver how can we estimate/calculate URE when the pseudorange observable is used? Assume that it is a single frequency (L1) receiver. Is there any metric that can be used to estimate ...
1
vote
2answers
764 views

What will post-process differentially correct raw Bad-Elf Surveyor U-Blox NMEA/raw UBX?

I have a Bad-Elf Surveyor unit which claims accuracy ~1m when post-processed, but I am at a loss to find software that can differentially correct the raw NMEA/UBX logs that the unit will record. I ...
2
votes
1answer
894 views

Post-processing GPS Satellite Measurements

I am working on a system that reports its location to a server using very little power. In order to achieve an extremely low power usage, I am avoiding having to download both the almanac and the ...
1
vote
1answer
647 views

Sourcing Ephemeris Data for GLONASS for rnx2rtkp

I'm currently trying to process some data from a uBlox receiver in RAWX format to calculate precise positions using only GLONASS data. Using the latest version of RTKLib I have successfully created a ....
3
votes
1answer
47 views

Reorder or remove out-of-order epochs in Rinex file

I have some Rinex (2.11) files where something went wrong and every epoch is duplicated. Mostly they're in order, but sometimes there's an epoch out of order, like this: AABBCCDDEFEFGGHHIIJJKLKLMMNN.....
2
votes
1answer
906 views

Export all SSF contents to RINEX

I used Pathfinder Office 5.60 to export SSF to RINEX. But the RINEX contains only L1 code and carrier data. It does NOT seem to export L2 code and carrier. BTW I use a GeoXH 6000 that also records ...
1
vote
0answers
448 views

Use of RRC(Range Rate Control) in Pseudo Range Correction for satellite

Can anyone tell me the use of RRC in order to calculate the value of PRC(pseudo range correction) in PPK(post processed kinematics)?
5
votes
1answer
4k views

What is required for post-processing differential correction? (And can Garmin units provide it?)

2 very closely related questions about differential correction with a Garmin unit: 1). Some data was collected using a Garmin GPSMAP 76Cx unit and the data collectors are interested in whether post-...
0
votes
1answer
531 views

Where to start rtk and Rinex?

I'm a total newbie at this filed and I want to use Rinex data to add more precision to my GPS receiver. I don't know where to start and even I spend a lot of time googling, I just got more confused.I ...
5
votes
3answers
5k views

GPS post processing - Differential Correction

I have a large set of collected GPS points that I'm pulling into Arcgis from SQL and creating an xy event layer to then map them. The fields for the points are as follows: recorded, lat, long, ...
3
votes
1answer
443 views

GeoXT .ssf files

I have changed the name of the project files when collecting data on a GeoXT collector. When I use Pathfinder office to differentially correct the files, most of them cannot find the correct CORS ...
4
votes
1answer
630 views

RINEX specs and OS library

Is there any OS library to read/write/process RINEX data? I've been wanting to start a OS library to read and write RINEX, which is something I need for a project, but not actually post-process them. ...
4
votes
2answers
3k views

Trimble GeoXH, XM, XT - Data logging without Terrasync or GPSCorrect?

Is it possible to capture data for post processing on a Trimble GeoXH, XT, or XM without using Terrasync or GPScorrect? Specifically I would like to create a RINEX file. A Trimble 4000 series receiver ...
8
votes
3answers
7k views

postprocessing GPS coordinates with RINEX data to improve precision?

Im doing some mapping for OSM in my region and I am curious if the precision of tracks from a GPS Receiver can be improved if they are post processed with RINEX data. The tracking is done with a ...