Howtosignalprocessing
What is 8-PSK modulation?
8PSK modulation means that the upper sideband signals of the two first-order sidebands suppressed by the carrier , are averagely divided into 8 phases and then synthesized. As shown in Figure 2, the upper and lower two signals are orthogonal to each other, but the amplitude is different.
What is psk8?
8-PSK or Multilevel PSK
It is digital modulation technique. It is used in broadcast video systems, aircraft and satellite systems. We can achieve bandwidth efficiency when we represent each signal element to map more than one bit.In BPSK modulation digital data of 1 and 0 is represented by 180 degree phase change.
How many bits is 8-PSK?
8 Phase-Shift Keying (8PSK) is a form of phase modulation with eight phase states located at 0, π, +/-(π/4), +/-(π/2) and +/-(3π/4) radians in the IQ plane. Each symbol carries log2(8) = 3 bits of information. A sample 8PSK constellation is shown below.
Where is 8-PSK used?
Both QPSK and 8PSK are widely used in satellite broadcasting.
