Precision Differential GPS
From base48
Precision Differential GPS
Founder:
skirit
Coops:
lnovy,nio
HW License:
GPL
Status:
active
Created:
2020-11-05
Last Modified:
2021-01-11
Contents
Goal of a project
Theory
sw for experimentation
Receive GPS signals using SDR and do custom calculations: https://gnss-sdr.org/
hw for experimentation
limeSDR mini 1 RX input 1 TX output SDR (nio has 1): LimeSDR Mini from limemicro.com
Cheap ceramic active antenna (nio has 1): ebay 28dB LNA Gain 1575 42MHz Male SMA Male GPS Active Antenna Stronger Singal NEW
Cheap bias tee to insert power to active antenna coax feed (nio has 1): 6GHz 10MHz-6000MHz Wideband Amplifier Broadband RF Feeder RF Isolator Bias Tee
Filter out noise using bandpass filter to allow SDR to receive GPS signal: Tindie - 1575 MHz GPS L1 Bandpass Filter Band Pass, by GPIO Labs
Other RF pages to read
ideas to evaluate
- calculate corrections for individual sattelite pseudoranges
