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Minimum Shift Keying (MSK), uses two frequencies which are separated by 1/2T and phase discontinuity is avoided in symbol boundaries. Further, MSK transmission can also be visualized as a variant of offset-QPSK technique, where sinusoidals are used f
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OQPSK Demodulation Project in Matlab.
OQPSK means offset quadrature phase shift keying. an important modulation scheme in IEEE 802.15.4
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通信原理实验matlab仿真中衰落信道下的偏移四进行相移键控-Matlab simulation of communication theory experiment fading channels to offset four-phase shift keying
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Offset quadrature phase-shift keying (OQPSK) is a variant of phase-shift keying modulation using 4 different values of the phase to transmit. It is sometimes called Staggered quadrature phase-shift keying (SQPSK).
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Differential PSK (DPSK)
Inexpensive
Quadrature Phase Shift Keying (QPSK)
Twice as spectrally efficient than BPSK
Offset QPSK (OQPSK)
reduce envelope variation
π/4 QPSK
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使用matlab simulink 仿真偏移四相相移键控,即OQPSK(Simulate offset quadrature phase shift keying using matlab simulink, ie OQPSK)
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