In wikipedia, there was an example on QPSK modulation where the main signal was
11000110 and I contained
1001 and Q contained
1010, now their output was shown by the Signal in the figure.
Now according to constellation diagram Signal can be represented as
11 -> pi/4 00 -> -(3*pi)/4 01 -> (3*pi)/4 10 -> -pi/4
But my confusion was in the phase vs time diagram shown in another figure given below
11 it starts from phase pi/4, but for
00 shouldn't the phase start from -(3*pi)/4 = -135 ?