Improving DSP-based measurements with spectral interpolation

Author

Burns, Mark

Author_Institution

Texas Instrum. Inc., Dallas, TX, USA

fYear

1995

fDate

21-25 Oct 1995

Firstpage

355

Lastpage

363

Abstract

Spectral interpolation is a simple mathematical process that removes certain types of non-coherent interference from coherent DSP-based measurements. A common example of non-coherent interference is exponential decay resulting from inadequate settling time in an AC-coupled measurement. Asynchronous 60 Hz power hum is another common example familiar to test and measurement professionals. Either type of interference can cause significant accuracy and repeatability problems in DSP-based measurements. Spectral interpolation removes most of the unwanted interference, reducing the need for expensive settling time

Keywords

automatic test equipment; integrated circuit measurement; integrated circuit testing; interpolation; mixed analogue-digital integrated circuits; 60 Hz; AC-coupled measurement; ATE; DSP-based measurements; accuracy problems; exponential decay; mixed signal testing; noncoherent interference; power hum; repeatability problems; settling time; spectral interpolation; Costs; Digital signal processing; Distortion measurement; Frequency response; Instruments; Interference; Interpolation; Production; Semiconductor device testing; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Test Conference, 1995. Proceedings., International

Conference_Location

Washington, DC

ISSN

1089-3539

Print_ISBN

0-7803-2992-9

Type

conf

DOI

10.1109/TEST.1995.529860

Filename

529860