Test Chirp Signal Generation Using Spectral Warping

A DSP technique that transforms a digital signal by warping the frequency axis is discussed. The technique corresponds to a mapping of the samples in the z-domain such that they are unevenly spaced around the unit circle. A spectral warping network has the property that a timeshifted impulse function is transformed into a chirp function. This can have useful applications in the analysis of the device-under-test frequency response in electronic testing of analogue and mixed-signal circuits/systems.

• Type: Conference
• Year: 2002
• Where: DELTA
• Authors: Warwick Allen, Donald G. Bailey, Serge N. Demidenko, Vincenzo Piuri
• Keywords: DELTA 2002, Frequency Axis, Information Management, Spectral Warping Network, Technique Corresponds