home.md

@@ -62,6 +62,8 @@ The satellites of the GNSS system are equipped with **several atomic clocks**; h
 
 [Signal acquisition](Signal%20acquisition)
 
+After the **acquisition** step which aims to detect the presence of a satellite and to estimate the initial delay and Doppler frequency of the signal at reception, the receiver switches **to tracking mode**.
+
 [Signal tracking](Signal%20tracking)
 
 [Signal monitoring](Signal%20monitoring)
@@ -72,14 +74,14 @@ The satellites of the GNSS system are equipped with **several atomic clocks**; h
 
 # PART.4 : Calculation
 
-[How to calculate your position?](How to calculate your position?)
+[How to calculate your position?](How%20to%20calculate%20your%20position?)
 
-[How do we use Doppler effect in geolocation?](How do we use Doppler effect in geolocation?)
+[How do we use Doppler effect in geolocation?](How%20do%20we%20use%20Doppler%20effect%20in%20geolocation?)
 
-[PVT calculation in dynamic mode with GPS/GALILEO/BEIDOU](PVT calculation in dynamic mode)
+[PVT calculation in dynamic mode with GPS/GALILEO/BEIDOU](PVT%20calculation%20in%20dynamic%20mode)
 
-[PVT calculation in static mode with GPS/GALILEO/BEIDOU](PVT calculation in static mode)
+[PVT calculation in static mode with GPS/GALILEO/BEIDOU](PVT%20calculation%20in%20static%20mode)
 
-[Least Squares approximation](The Least Squares approximation)
+[Least Squares approximation](The%20Least%20Squares%20approximation)
 
 # PART 5 : Outreach videos
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