IT Workshop (Sci Lab/MATLAB) | 13. Real-Time Signal Processing using MATLAB by Abraham | Learn Smarter
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13. Real-Time Signal Processing using MATLAB

13. Real-Time Signal Processing using MATLAB

Real-time signal processing is vital in various modern applications, from communications to biomedical instruments. MATLAB offers robust tools for developing and simulating these systems, enabling rapid modeling and testing. The chapter covers fundamental concepts, practical example implementations, and challenges in real-time processing, emphasizing MATLAB's capabilities.

42 sections

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Sections

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  1. 13
    Real-Time Signal Processing Using Matlab

    This section covers the principles and implementation of real-time signal...

  2. 13.1
    Basics Of Signal Processing

    This section introduces the fundamental concepts of signal processing,...

  3. 13.1.1
    Definition Of A Signal

    A signal is a function that conveys information about a phenomenon, which...

  4. 13.1.2
    Classification Of Signals

    This section discusses the various types of signals classified based on...

  5. 13.1.3
    Signal Processing Systems

    This section provides an overview of the different types of signal...

  6. 13.2
    Real-Time Signal Processing Concepts

    This section introduces key concepts in real-time signal processing,...

  7. 13.2.1
    Real-Time Constraints

    This section discusses the essential constraints of real-time signal...

  8. 13.2.2
    Sampling And Aliasing

    This section discusses the critical concepts of sampling and aliasing in...

  9. 13.2.3
    Quantization And Bit Depth

    This section discusses quantization and bit depth, emphasizing their impact...

  10. 13.3
    Matlab For Real-Time Signal Processing

    This section introduces MATLAB's toolboxes designed specifically for...

  11. 13.3.1
    Matlab Toolboxes For Signal Processing

    This section covers the essential MATLAB toolboxes that enhance signal...

  12. 13.3.2
    Real-Time Simulation Environment

    This section outlines how MATLAB facilitates real-time simulation...

  13. 13.4
    Signal Acquisition In Matlab

    This section discusses how to acquire and plot audio input in MATLAB,...

  14. 13.4.1
    Audio Input Using Matlab

    This section introduces audio input capabilities in MATLAB, showcasing how...

  15. 13.4.2
    Real-Time Plotting

    This section covers how to perform real-time plotting of audio signals in...

  16. 13.4.3
    Using Dsp.audiorecorder

    This section covers how to use the dsp.AudioRecorder in MATLAB for real-time...

  17. 13.5
    Real-Time Signal Filtering

    This section covers the design and application of FIR and IIR filters in...

  18. 13.5.1
    Fir And Iir Filters

    This section discusses FIR and IIR filters, their design using MATLAB, and...

  19. 13.5.2
    Applying Filters In Real-Time

    This section focuses on real-time filtering of audio signals using MATLAB's...

  20. 13.6
    Real-Time Fourier Analysis

    This section covers the implementation of Fast Fourier Transform (FFT) and...

  21. 13.6.1
    Fast Fourier Transform (Fft)

    This section introduces the Fast Fourier Transform (FFT) as a tool for...

  22. 13.6.2
    Real-Time Spectrogram

    The Real-Time Spectrogram section discusses how to visualize audio signals...

  23. 13.7
    Noise Removal And Enhancement

    This section discusses methods for identifying and removing noise from...

  24. 13.7.1
    Noise Identification

    This section discusses the common types of noise in signal processing,...

  25. 13.7.2
    Real-Time Denoising Techniques

    This section focuses on effective techniques for denoising audio signals in...

  26. 13.8
    Real-Time Audio Effects Implementation

    This section introduces techniques for implementing audio effects in...

  27. 13.8.1

    This section discusses the implementation of the echo effect in real-time...

  28. 13.8.2
    Volume Control

    This section explains the concept of volume control in real-time audio...

  29. 13.9
    Real-Time Signal Visualization

    This section covers the techniques for visualizing signals in real-time...

  30. 13.9.1
    Time-Domain Visualization

    This section introduces real-time time-domain visualization techniques for...

  31. 13.9.2
    Frequency-Domain Visualization

    This section focuses on frequency-domain visualization techniques in...

  32. 13.10
    Simulink For Real-Time Systems

    This section highlights the use of Simulink for developing and simulating...

  33. 13.10.1
    Real-Time Blocks In Simulink

    This section covers essential real-time blocks in Simulink that are crucial...

  34. 13.10.2
    External Mode Execution

    External Mode Execution allows for real-time execution of models on host or...

  35. 13.10.3
    Code Generation For Embedded Real-Time

    This section discusses code generation in Simulink and MATLAB for deploying...

  36. 13.11
    Case Study: Real-Time Voice Recorder And Playback

    This section focuses on creating a real-time voice recording and playback...

  37. 13.11.1

    This section outlines the objective of building a real-time voice recording...

  38. 13.11.2
    Steps Involved

    This section outlines the steps required to create a real-time voice...

  39. 13.12
    Challenges In Real-Time Processing

    This section outlines the primary challenges faced in real-time signal...

  40. 13.12.1
    Computational Delays

    Computational delays in real-time processing arise from heavy computations...

  41. 13.12.2
    Memory Management

    Memory management in real-time systems is crucial to avoid buffer overflow...

  42. 13.12.3
    Integration With Hardware

    This section discusses the essential aspects of integrating real-time signal...

What we have learnt

  • Signals can be classified into various types such as continuous-time and discrete-time.
  • Apart from filtering, real-time systems require effective noise management and signal acquisition techniques.
  • MATLAB provides specialized toolboxes that facilitate real-time simulation and deployment of signal processing applications.

Key Concepts

-- RealTime Signal Processing
Immediate processing of signals to provide instantaneous feedback or action in various systems.
-- Nyquist Theorem
A principle stating that a signal must be sampled at least twice the highest frequency to avoid aliasing.
-- FIR Filters
Finite impulse response filters used in signal processing to modify signal characteristics with a defined response.
-- Quantization Noise
The error introduced when continuous signals are converted to discrete form.
-- Spectrogram
A visual representation of the spectrum of frequencies in a signal as it varies with time.

Additional Learning Materials

Supplementary resources to enhance your learning experience.