Notes on Communication Systems

This collection covers topics in digital signal processing (DSP) and communication theory that I’ve been exploring as a hobby. Rather than relying on heavy mathematics, my aim is to develop intuition by emphasizing geometric interpretations.

Basic DSP Operations

  • Discrete Fourier Transform
  • Convolution
  • Cross-correlation
  • Time Delay in Frequency Domain
  • Down-sampling in Frequency Domain
  • Phase Shift in Frequency Domain
  • Frequency Shift

Advanced DSP Techniques