Band-Limited Pulse Generator

View Resource

No Strings Attached

Author:

Ed Doering

Subject:

Science and Technology

Institution Name:

Connexions

Collection:

Connexions

Grade Level:

Post-secondary

Abstract:

Subtractive synthesis techniques often require a wideband excitation source such as a pulse train to drive a time-varying digital filter. Traditional rectangular pulses have theoretically infinite bandwidth, and therefore always introduce aliasing noise into the input signal. A band-limited pulse (BLP) source is free of aliasing problems, and is more suitable for subtractive synthesis algorithms. The mathematics of the band-limited pulse is presented, and a LabVIEW VI is developed to implement the BLP source. An audio demonstration is included.

Course Type:

Learning Module

Languages:

English

Material Type:

Activities and Labs, Readings

Media Format:

Graphics/Photos, Text/HTML, Downloadable docs, Video

Conditions of Use:

Creative Commons Attribution 2.0