Constellation

OQPSK - GNU Radio Companion

OQPSK - GNU Radio Companion
  1. What is OQPSK?
  2. What is a constellation modulator?

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).

What is a constellation modulator?

Constellation modulation is the art of encoding information not only in the symbols within a constellation but also by encoding information by selecting a constellation from a set of constellations that are switched from time to time.

Power For a real-world system of oscillating mechanical components, what kinds of frequencies should I seek in DFT?
For a real-world system of oscillating mechanical components, what kinds of frequencies should I seek in DFT?
How do you calculate power spectral density from FFT?Why is FFT needed?What does the amplitude of FFT mean?What is power spectrum analysis? How do y...
Theorem What is theorem under this formula?
What is theorem under this formula?
What are the 3 types of theorem?What is this theorem?What is theorem example? What are the 3 types of theorem?Linear Pair Theorem If two angles form...
Harmonics Harmonics showing up in FFT of processed data
Harmonics showing up in FFT of processed data
Why do harmonics show up in FFT?How do you remove harmonics from FFT?What are harmonics in Fourier transform?What are harmonics in signal processing?...