Digital Signal Processing

 What is Digital Signal Processing?
      Digital Signal Processing is concerned with the representation of signals by a sequence of numbers or symbols and the processing of these sequences.

What is a Signal?
    A function that conveys information generally about the state or behavior of a system.
    Mathematically, Signals are represented as a function of one or more independent variables.
What is Signal Processing?
    It involves analyzing, modifying, and synthesizing signals to pull meaning out of it.
  • Analog Signal Processing
  • Digital Signal Processing
Digital Signal Processing
  • deals with the processing of discrete signals
  • processing is done using general-purpose computers, ASIC, FPGAs, DSP chips.
Block Diagram of Digital Signal Processing
Application of DSP
  • Speech and Audio Processing
    • Speech Analysis and Recognition
    • Noise Filtering, echo cancellation
  • Image and Video Processing
    • compression, enhancement, reconstruction, and restoration of images and videos
    • face detection
  • Military and Telecommunication
    • sonar and navigation
    • radar tracking
    • modulation and demodulation
  • biomedical and healthcare sector
    • analysis of ECGs, EEGs, and X-rays signals
  • consumer Electronics
    • smartphones, TV, cameras
Advantages of DSP
  • Simplicity
  • Flexible
  • Error detection and Correction
  • Easy Data Storage
  • Low Cost
Disadvantages of DSP
  • Higher power consumption
  • Higher learning Curve is required for operation

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