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@@ -52,7 +52,7 @@ The position of the satellites is calculated on the ground and is made public by
 
 [Multipath Signaling](Multipath%20Signaling)
 
-These phenomena are among the most difficult to understand. Any reflective object placed in the vicinity of the GPS station's antenna can reflect part of the signal from the satellite back to the antenna. **The signal will therefore be deteriorated,** more difficult to interpret and therefore a source of large errors. Moreover, this kind of phenomenon is very frequent in the life of any user, especially in the city where the path that the signal makes is rarely clear.
+This phenomenon is problematic because it is difficult to model and eliminate. Any reflective object placed in the vicinity of the GPS station's antenna can reflect part of the signal from the satellite back to the antenna. **The signal will therefore be deteriorated,** more difficult to interpret and therefore a source of large errors. Moreover, this kind of phenomenon is very frequent in the life of any user, especially in the city where the path that the signal makes is rarely clear.
 
 [The clock synchronization problem - A REFAIRE](The%20clock%20synchronization%20problem)