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