Skip to content
This repository has been archived by the owner on Aug 23, 2020. It is now read-only.
/ GPSrx Public archive

Reception of GPS signals from RTL-SDR and getting raw GPS data

Notifications You must be signed in to change notification settings

ajinkyagorad/GPSrx

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

GPSrx

##Reception of GPS signals from RTL-SDR and getting raw GPS data

  • Using GNU radio software to realize the incoming data and plot its spectrum.
  • GPS signals are well below the thermal noise, but can be received because it uses C/A signals which uses Spectrum spreading using PRN (Pseudo Random) Codes.
  • By correlating the received signal (which looks like noise) by the C/A PRN code, GPS receivers receive data from satellites

##Results

  • How PRN gold codes look like?, here are g5 and g17 C/A codes Img
  • Results Yet, correlation of raw signal with all the 37 CA codes Img
  • With self simulated data without noise, the power of correlation
  • Img ####Check List!!!
  • check the CA code correlation on the simulated noise!
  • Correlate Code spreaded data with the cacode, simulation
  • construct time domain sinc filtered signal from gold codes with data representation similar to GPS signal
  • resample the signal simulating Doppler effect due to satellite and predict Doppler shift from GPS signal buried under noise

##Following links were referenced :

About

Reception of GPS signals from RTL-SDR and getting raw GPS data

Resources

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published