Resources

Here’s a list of information I’ve stumbled across while trying to come up to speed on precision GPS.  I’ve made no attempt to make it a comprehensive list, just things I’ve found particularly interesting or useful.

Recommended GNSS books/wikis:
GPS:Signals, Measurements, and Performance (Misra/Eng):
GPS: Essentials of Satellite Navigation (online pdf)
GNSS DATA PROCESS Vol I: Fundamentals and Algorithms (online pdf)
ESA Navipedia Wiki

RTKLIB info:
RTKLIB website
RTKLIB/GNSS overview

RTKLIB Demo5 source code
RTKLIB Demo5 executables
RTKLIB Demo5 User Manual

RTKLIB 2.4.3 source code
RTKLIB 2.4.2 User Manual

Sample GNSS raw data:
Raw GNSSS data sets

RTKLIB articles/papers:
Eval of Multi-GNSS RTK with u-blox NEO-M8N receivers (Takasu)

U-blox GPS receiver info:
Neo-M8 Receiver Description
ZED-F9P Interface Description
Ublox GPS antenna app notes
Neo-M8N raw data commands
u-center Ublox eval software download
u-center Ublox eval software User Guide
Getting raw data out of older generation Ublox receivers

Low cost RTK/PPK receivers (under $1000):
Waveshare (Quectel LC29H L1/L5 receiver board ($60)
GNSS OEM  (u-blox M8T ($73)
GNSS OEM  (u-blox F9P, Unicore 980/982, ($209-$230)
Ardusimple (u-blox F9P receiver board ($175-$260)
Ardusimple (Septentrio Mosaic receiver board ($654-$831)
Sparkfun (u-blox F9P/ Septentrio Mosaic receiver boards ($275/$700)

GPS articles/papers/thesis:
The LAMBDA method for integer ambiguity estimation: implementation
GLONASS ambiguity resolution
Demystifying GLONASS Inter-Frequency Carrier Phase Biases

RTKLIB/GPS tutorials/blogs:
GPS-RTK2 Hookup Guide for the Sparkfun u-blox F9P board
Sparkfun GPS-RTK Hookup Guide
Ardusimple tutorials for the u-blox F9P
Sub Centimeter GPS With RTKLIB (short tutorial)

Forums:
u-blox Forum
AgOpenGPS: RTK for agriculture

Free NTRIP caster services:
RTK2GO
SNIP