http://www.einstein-online.info/spotlights/doppler
Albert Einstein Institute: "The frequency of a wave-like signal - such as sound or light - depends on the movement of the sender and of the receiver. This is known as the Doppler effect. (...) Here is an animation of the receiver moving towards the source: (...) By observing the two indicator lights, you can see for yourself that, once more, there is a blue-shift - the pulse frequency measured at the receiver is somewhat higher than the frequency with which the pulses are sent out. This time, the distances between subsequent pulses are not affected, but still there is a frequency shift..."
That is, if the frequency measured by the stationary receiver is f=c/L (L is the distance between subsequent pulses), the frequency measured by a receiver moving towards the light source with speed v is:
f' = f(1+v/c) = (c+v)/L = c'/L
where c'=c+v is the speed of the light waves relative to the moving receiver. Special relativity is violated.
The relativistic corrections (time dilation is taken into account) add a factor of gamma:
f' = f(1+v/c)(gamma) = (c+v)(gamma)/L = c'/L
where c'=(c+v)(gamma) is the speed of the light waves relative to the moving receiver. Clearly both the non-relativistic and relativistic Doppler effect violate special relativity. If v is small enough, we have c'=c+v in both cases, which means that the speed of light relative to the receiver varies with the speed of the receiver as predicted by both Newton's emission theory of light and Maxwell's 19th century electromagnetic theory.
Pentcho Valev