Qpsk

How can I do QPSK in MATLAB [closed]

How can I do QPSK in MATLAB [closed]
  1. How to generate QPSK signal?
  2. How QPSK modulation is done?
  3. How do you demodulate a QPSK signal in Matlab?

How to generate QPSK signal?

The QPSK signal is generated by phase-shifting the carrier. This applies for any carrier frequency. All symbol transitions are possible. I/Q Signals of quadrature modulation.

How QPSK modulation is done?

Quadrature Phase Shift Keying (QPSK) is a form of Phase Shift Keying in which two bits are modulated at once, selecting one of four possible carrier phase shifts (0, 90, 180, or 270 degrees). QPSK allows the signal to carry twice as much information as ordinary PSK using the same bandwidth.

How do you demodulate a QPSK signal in Matlab?

y = qpskdemod( x ) applies QPSK demodulation to the input signal and returns the demodulated signal.

Power Signal power from single sided DFT
Signal power from single sided DFT
What is single sided and double sided spectrum?How do you calculate power from FFT?How do you calculate the power spectrum of a signal?Does FFT give ...
Scalogram Why does a signal with constant frequency have spots that changes colors at a specific value of scale (and so frequency) in the scalogram?
Why does a signal with constant frequency have spots that changes colors at a specific value of scale (and so frequency) in the scalogram?
What does a scalogram show?What is the difference between CWT and DWT?What is scalogram matlab? What does a scalogram show?The scalogram is the abso...
Quantization Question on discrete signals and quantization
Question on discrete signals and quantization
Why does quantization distort a signal?What are two types of quantization errors?What is relationship between quantization levels and no of bits?Why ...