Abstract: A multipath discriminator module and related methods are provided for communications and/or navigation systems that implement spread spectrum modulation. In one example embodiment, the module includes an input suitable for receiving navigation signals, a sampler for supplying sampled signals at a frequency twice the apparent frequency of the code of the signals, and a submodule for calculating an error signal from the sampled signals.

Abstract: A multipath discriminator module for a communications and/or navigation system that implements spread spectrum modulation, which module has an input suitable for receiving navigation signals, a sampler for supplying sampled signals at a frequency twice the apparent frequency fc of the code of said signals, and a submodule for calculating an error signal ek from said sampled signals, and a locally generated spreading code C|K|L wherein: 1 e k = K β ⁢   ⁢ ℜ ⁡ ( Z K ⁢ -- Z K - + S ⁢   ⁢ β ) with ⁢   ⁢ { Z K - = [ r k - t2 · C &LeftBracketingBar; K &RightBracketingBar; ⁢ L ] ⊗ h k b Z K -- = [ r k - t1 · C &LeftBracketingBar; K &RightBracketingBar; ⁢ L ] ⊗ h k b ⁢ ⁢ or ⁢   ⁢ { Z K - = [ r k · C &LeftBracketingBar; K - t2 &RightBracketingBar; &it