Howtosignalprocessing
- What are the two primary differences between MSK and QPSK?
- What is the difference between FSK and MSK?
- Why MSK is better than QPSK?
- What is OQPSK?
What are the two primary differences between MSK and QPSK?
The MSK has a larger null-to-null bandwidth than the QPSK, but a much smaller 99%-power bandwidth than the QPSK. The π/4-QPSK has become very popular for mobile satellite communications as well as for terrestrial mobile communications because of its compact spectrum and, capability of differential detection.
What is the difference between FSK and MSK?
Minimum Shift Keying (MSK) : The minimum frequency space that allows the 2 fsk representing symbols 0s and 1s. Thus CP (Continuous Phase) FSK signal with a deviation ratio if one half is defined as MSK.
Why MSK is better than QPSK?
Overall, for direct detection systems, MSK has an advantage over QPSK because the compensation of nonlinearities on the receiver side is not possible and MSK performs better under these circumstances [2]. Furthermore the receiver for MSK is easier to implement. For coherent detection, this advantage is reduced.
What is OQPSK?
Offset quadrature phase-shift keying (OQPSK) is a variant of phase-shift keying modulation using four different values of the phase to transmit. It is sometimes called staggered quadrature phase-shift keying (SQPSK).
