Course

Adaptive Signal Processing

Indian Institute of Technology Kharagpur

This course covers essential topics in Adaptive Signal Processing, focusing on adaptive filters and stochastic processes. Students will explore:

  • Adaptive Filters
  • Stochastic Processes
  • Correlation Structure
  • Convergence Analysis
  • LMS Algorithm
  • Vector Space Treatment to Random Variables
  • Gradient Adaptive Lattice
  • Recursive Least Squares
  • Systolic Implementation
  • Singular Value Decomposition

Each module dives deep into these concepts, providing theoretical foundations and practical applications, ensuring students gain a robust understanding of adaptive signal processing methods.

Course Lectures
  • Lecture - 1 Introduction to Adaptive Filters
    Prof. Mrityunjoy Chakraborty

    This module introduces the fundamental concepts of adaptive filters, focusing on their structure, functionality, and importance in signal processing. Students will learn how these filters adjust their parameters in response to changes in input signals, providing a robust foundation for subsequent topics.

  • This module delves into stochastic processes, which are critical in understanding random signals and their behavior over time. It covers various types of stochastic processes, their properties, and applications in signal processing. Students will explore how to model and analyze these processes.

  • Lecture - 3 Stochastic Processes
    Prof. Mrityunjoy Chakraborty

    This module continues the exploration of stochastic processes, diving deeper into their characteristics and implications in adaptive signal processing. Students will learn about correlation functions, stationarity, and the role of stochastic processes in filter design.

  • Lecture - 4 Correlation Structure
    Prof. Mrityunjoy Chakraborty

    This module focuses on the correlation structure in stochastic processes, discussing how correlation affects signal properties and filter performance. It introduces techniques for estimating correlation functions and understanding their significance in adaptive filtering scenarios.

  • Lecture - 5 FIR Wiener Filter (Real)
    Prof. Mrityunjoy Chakraborty

    This module introduces the FIR Wiener filter, which is essential in adaptive signal processing. Students will learn about its design, implementation, and how it adapts to minimize error in the presence of noise, providing a practical understanding of filter operations.

  • Lecture - 6 Steepest Descent Technique
    Prof. Mrityunjoy Chakraborty

    This module covers the steepest descent technique, a fundamental optimization method used in adaptive filtering. Students will learn how to apply this technique to minimize cost functions and enhance filter performance by iteratively adjusting filter coefficients.

  • Lecture - 7 LMS Algorithm
    Prof. Mrityunjoy Chakraborty

    This module introduces the LMS (Least Mean Squares) algorithm, a widely-used adaptive filtering technique. Students will explore its theoretical foundations, convergence properties, and practical implementations, learning how to apply it effectively in various signal processing scenarios.

  • Lecture - 8 Convergence Analysis
    Prof. Mrityunjoy Chakraborty

    This module focuses on convergence analysis, which is crucial for understanding how adaptive algorithms perform over time. Students will learn about different convergence criteria and methods for evaluating the performance of adaptive filters.

  • Lecture - 9 Convergence Analysis (Mean Square)
    Prof. Mrityunjoy Chakraborty

    This module continues the convergence analysis, specifically focusing on mean square convergence. It provides insights into how adaptive algorithms reach stability and the implications of various factors that affect their performance in practical applications.

  • This module revisits mean square convergence but emphasizes its practical significance in adaptive filtering applications. Students will explore case studies and examples demonstrating the importance of this concept in real-world scenarios.

  • Lecture - 11 Misadjustment and Excess MSE
    Prof. Mrityunjoy Chakraborty

    This module discusses misadjustment and excess mean square error (MSE), critical concepts in adaptive filtering. Students will learn about their definitions, implications, and methods to minimize them, enhancing their understanding of filter performance.

  • Lecture - 12 Misadjustment and Excess MSE
    Prof. Mrityunjoy Chakraborty

    This module continues the discussion on misadjustment and excess MSE, providing deeper insights into their causes and effects in adaptive filtering systems. Students will engage in practical exercises to analyze and mitigate these issues.

  • Lecture - 13 Sign LMS Algorithm
    Prof. Mrityunjoy Chakraborty

    This module introduces the Sign LMS algorithm, a variation of the LMS algorithm that utilizes the sign of the input signal to reduce computational complexity. Students will learn about its advantages and specific applications in adaptive filtering.

  • Lecture - 14 Block LMS Algorithm
    Prof. Mrityunjoy Chakraborty

    This module covers the Block LMS algorithm, which enhances the performance of the LMS algorithm by processing data in blocks. Students will learn about its implementation, advantages, and scenarios where it is most effective.

  • This module focuses on the fast implementation of the Block LMS algorithm, discussing techniques to optimize its performance and reduce computational load. Students will gain insights into practical implementations and real-time applications.

  • This module continues the discussion on fast implementation methods for the Block LMS algorithm, providing students with hands-on experience and exercises to solidify their understanding of optimization in adaptive filtering.

  • This module introduces the Vector Space Treatment to Random Variables, exploring how random variables can be analyzed within a vector space framework. Students will learn about projection, orthogonality, and their applications in adaptive filtering.

  • This module continues the exploration of Vector Space Treatment, focusing on advanced concepts and techniques for analyzing random variables in signal processing. Students will engage in practical examples to apply these concepts effectively.

  • This module covers orthogonalization and orthogonal projection methods, essential for understanding signal decomposition in adaptive filtering. Students will learn mathematical foundations and practical applications of these techniques in signal processing.

  • This module discusses orthogonal decomposition of signal subspaces, exploring how signals can be represented within orthogonal bases. Students will learn about the implications of orthogonality in adaptive filtering and signal processing.

  • Lecture - 21 Introduction to Linear Prediction
    Prof. Mrityunjoy Chakraborty

    This module introduces linear prediction, a technique used to estimate future values of signals based on past observations. Students will learn about prediction models, error analysis, and applications in adaptive filtering.

  • Lecture - 22 Lattice Filter
    Prof. Mrityunjoy Chakraborty

    This module covers lattice filters, which are a type of adaptive filter known for their efficiency and flexibility. Students will learn about their structure, operation, and applications in various signal processing tasks.

  • Lecture - 23 Lattice Recursions
    Prof. Mrityunjoy Chakraborty

    This module discusses lattice recursions, which are algorithms that enhance the performance of lattice filters. Students will learn about their mathematical foundations and how they improve filtering capabilities in adaptive systems.

  • Lecture - 24 Lattice as Optimal Filter
    Prof. Mrityunjoy Chakraborty

    This module focuses on the concept of lattice as an optimal filter, exploring its theoretical background and practical implications. Students will analyze how lattice structures can provide optimal filtering solutions in various scenarios.

  • This module introduces linear prediction and autoregressive modeling, two critical concepts in adaptive signal processing. Students will learn how these techniques aid in predicting signal behavior and improving filter design.

  • Lecture - 26 Gradient Adaptive Lattice
    Prof. Mrityunjoy Chakraborty

    This module covers the gradient adaptive lattice, an advanced technique for improving adaptive filtering performance. Students will explore the mathematical foundation and applications of this method in various signal processing tasks.

  • Lecture - 27 Gradient Adaptive Lattice
    Prof. Mrityunjoy Chakraborty

    This module continues the discussion on the gradient adaptive lattice, providing students with practical examples and exercises to reinforce their understanding of its implementation and benefits in adaptive filtering.

  • This module introduces recursive least squares (RLS), a robust adaptive filtering approach. Students will learn about its principles, advantages over other methods, and applications in real-time signal processing.

  • Lecture - 29 RLS Approach to Adaptive Filters
    Prof. Mrityunjoy Chakraborty

    This module focuses on the RLS approach to adaptive filters, exploring its implementation and performance metrics. Students will learn how RLS can adapt quickly to changing signal conditions for superior filtering results.

  • Lecture - 30 RLS Adaptive Lattice
    Prof. Mrityunjoy Chakraborty

    This module covers RLS adaptive lattice, a specialized implementation of RLS for lattice structures. Students will explore its advantages and specific applications in adaptive signal processing, enhancing their practical skills.

  • Lecture - 31 RLS Lattice Recursions
    Prof. Mrityunjoy Chakraborty

    This module discusses RLS lattice recursions, which enhance the performance of adaptive filtering by improving computational efficiency. Students will learn about the recursive nature of these algorithms and their practical applications.

  • Lecture - 32 RLS Lattice Recursions
    Prof. Mrityunjoy Chakraborty

    This module continues the discussion on RLS lattice recursions, providing students with exercises and practical examples to solidify their understanding of implementation and optimization techniques in adaptive filtering.

  • Lecture - 33 RLS Lattice Algorithm
    Prof. Mrityunjoy Chakraborty

    This module introduces the RLS lattice algorithm, discussing its structure, operation, and advantages in adaptive filtering. Students will learn how this algorithm can optimize performance in various signal processing applications.

  • Lecture - 34 RLS Using QR Decomposition
    Prof. Mrityunjoy Chakraborty

    This module focuses on RLS using QR decomposition, a method that improves stability and performance in adaptive filtering. Students will learn how QR decomposition can enhance the RLS algorithm's efficiency and effectiveness.

  • Lecture - 35 Givens Rotation
    Prof. Mrityunjoy Chakraborty

    This module discusses Givens rotation, a technique used in QR decomposition to maintain numerical stability in adaptive filtering. Students will explore its application in optimizing performance and reducing computational errors.

  • This module continues the discussion on Givens rotation and QR decomposition, providing practical examples and exercises to reinforce students' understanding of these techniques in adaptive filtering.

  • Lecture - 37 Systolic Implementation
    Prof. Mrityunjoy Chakraborty

    This module introduces systolic implementation, a method for optimizing adaptive filters through parallel processing. Students will learn about its advantages, design principles, and applications in real-time signal processing systems.

  • Lecture - 38 Systolic Implementation
    Prof. Mrityunjoy Chakraborty

    This module focuses on advanced systolic implementation techniques, providing students with practical experience in designing and optimizing adaptive filters for real-time applications. Exercises will reinforce theoretical concepts.

  • Lecture - 39 Singular Value Decomposition
    Prof. Mrityunjoy Chakraborty

    This module introduces singular value decomposition (SVD), an important mathematical technique in signal processing. Students will learn about its applications in adaptive filtering, data compression, and noise reduction.

  • Lecture - 40 Singular Value Decomposition
    Prof. Mrityunjoy Chakraborty

    This module continues the discussion on singular value decomposition, focusing on advanced applications and techniques for utilizing SVD in adaptive filtering and signal processing tasks. Students will engage in practical exercises.

  • Lecture - 41 Singular Value Decomposition
    Prof. Mrityunjoy Chakraborty

    This module concludes the course with a comprehensive overview of singular value decomposition, reviewing key concepts and their implications for adaptive filtering and signal processing. Students will solidify their understanding through discussion and Q&A.