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Basics of Software-Defined Radios and Practical Applications

Basics of Software-Defined Radios and Practical Applications. Instructor: Dr. Meenakshi Rawat, Department of Electronics and Communication Engineering, IIT Roorkee. Software-defined radio (SDR) is an inherent part of modern communication system, where many processes, which used to be implemented in hardware, are defined in software domain for flexibility and configurability. This course describes various components of software-defined-radios with the understanding of their limitation and application of software-defined-solutions to overcome such limitations. Understanding the interplay of analog and digital signal processing for power as well as spectrum efficient transmission and reception of signal leads to an optimized, yet, practical radio solution. This course will allow students to understand (1) the terminology used in industrial data-sheets and (2) motivation for selecting appropriate commercial solutions for a practical transceiver design. (from nptel.ac.in)

Lecture 17 - Predistortion Techniques for Nonlinear Distortion in SDR

Software defined radio solutions rely on digital signal processing techniques. This lecture presents digital predistortion as a digital signal processing solution for power amplifier linearization. Proof-of-concept measurement test-bed is discussed.


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Lecture 01 - Foundation for Software-Defined Radio
Lecture 02 - Components of a Software-Defined Radio
Lecture 03 - Software-Defined Radio Architecture, Part I
Lecture 04 - Software-Defined Radio Architecture, Part II
Lecture 05 - Software-Defined Radio Architecture, Part III
Lecture 06 - Software-Defined Radio Architecture, Part IV
Lecture 07 - Distortion Parameters
Lecture 08 - Distortion Parameters: Phase Jitter and its Impact on Noise Level
Lecture 09 - Distortions Parameters: Nonlinear Distortion
Lecture 10 - Distortions Parameters: Nonlinearity Specifications
Lecture 11 - Power Amplifiers: Nonlinear Distortion in Transmitted Signals
Lecture 12 - Power Amplifiers: Useful Definitions
Lecture 13 - Case Study: Power Amplifier Line-up for Achieving Linearity and Power Requirement Example
Lecture 14 - Case Study: Power Amplifier Line-up for Linearity and Power Requirement: Need for Linearization Techniques
Lecture 15 - Behavioral Models for Representing Nonlinear Distortions
Lecture 16 - Linearization Techniques for Nonlinear Distortion
Lecture 17 - Predistortion Techniques for Nonlinear Distortion in SDR
Lecture 18 - Basic Digital Predistortion Techniques for Nonlinear Distortion in SDR
Lecture 19 - State-of-the-art Digital Predistortion Techniques for Nonlinear Distortion in SDR
Lecture 20 - Digital Predistortion Techniques for Linear as well as Nonlinear Distortion in SDR