Single-Course English 5 ECTS

Nonlinear transducers

Overall Course Objectives

To introduce advanced elements in loudspeaker models in order to improve the validity of the models at higher levels. To describe the dominant sources of distortion in the loudspeaker and to introduce methods for identifying linear and nonlinear parameters. To introduce methods for compensation of the distortion.

Learning Objectives

  • Explain the fundamental differences between linear and non-linear systems
  • Account for the dominant nonlinearities in electrodynamic loudspeakers and to predict how a given nonlinearity will affect the movement of loudspeaker
  • Explain how the loudspeaker behaves in the non-linear mode, including harmonic spectrum and DC position
  • Compare and apply techniques for modelling physical systems in discrete time
  • Carry out measurements and calculation of common measures of distortion
  • Account for basic methods for identifying model parameters
  • Explain and apply numerical methods for solving nonlinear differential equations
  • Explain the fundamentals of non-linear compensation

Course Content

Nonlinear components in loudspeakers.
Distortion measures
Numerical solvers for nonlinear systems
Identification of model parameters
Compensation of distortion

Recommended prerequisites

34870/31220

Teaching Method

Lectures. Mandatory simulation exercises and laboratory measurements.

Faculty

See course in the course database.

Registration

Language

English

Duration

3 weeks

Institute

Electro

Place

DTU Lyngby Campus

Course code 34871
Course type Candidate
Semester start Week 1
Semester end Week 35
Days Mon-fri 8:00-17:00
Price

7.500,00 DKK

Registration