Accuracy Improvement of Oscilloscope Based Modulated RF Measurements

Author

Fager, Christian ; Andersson, Kristoffer

Author_Institution

Microwave Electron. Lab., Chalmers Univ. of Technol., Goteborg

fYear

2006

fDate

30-31 Jan. 2006

Firstpage

13

Lastpage

16

Abstract

A statistical averaging method based on an extended Kalman filter is applied to digital sampling oscilloscope (DSO) measurements of modulated RF signals. Various measurements using a 48 Mbit/s 802.11a signal modulated onto a 1.9 GHz carrier are used to demonstrate significant performance enhancements as compared to traditional measurement techniques. The method presented shows that a general purpose high frequency DSO can replace more expensive and dedicated equipment for accurate characterization of microwave devices under modulated signal excitation

Keywords

Kalman filters; UHF measurement; digital storage oscilloscopes; signal processing equipment; statistical analysis; 1.9 GHz; 48 Mbit/s; digital sampling oscilloscope; extended Kalman filter; microwave measurement; statistical averaging; statistical signal processing; Bandwidth; Digital modulation; Frequency measurement; Microwave measurements; Microwave technology; Microwave theory and techniques; Oscilloscopes; Performance evaluation; Radio frequency; Sampling methods; Digital sampling oscilloscope; microwave measurement techniques; statistical signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Nonlinear Microwave and Millimeter-Wave Circuits, 2006 International Workshop on

Conference_Location

Aveiro

Print_ISBN

0-7803-9723-1

Electronic_ISBN

0-7803-9723-1

Type

conf

DOI

10.1109/INMMIC.2006.283496

Filename

4062247