Analysis of the linear amplifier/analog-digital converter interface in a digital microwave receiver

Author

Sharpin, David L. ; Tsui, James B Y

Author_Institution

Wright Lab., Wright-Patterson Air Force Base, OH, USA

Volume

31

Issue

1

fYear

1995

Firstpage

248

Lastpage

256

Abstract

An analysis of the relationship between a linear amplifier chain and an analog-to-digital converter (ADC) in a digital microwave receiver, with respect to sensitivity and dynamic range issues, is presented. The effects of gain, third-order intermodulation products and ADC characteristics on the performance of the receiver are illustrated and design criteria for the linear amplifier chain (given a specified ADC) are developed. A computer program is included which calculates theoretical receiver performance based on gain and third-order intermodulation product selections. Experimental results are also presented and compared with theoretical values.<>

Keywords

analogue-digital conversion; circuit CAD; circuit analysis computing; digital circuits; electronic warfare; fast Fourier transforms; intermodulation distortion; microwave receivers; ADC characteristics; EW; analog-digital converter; computer program; design criteria; digital microwave receiver; dynamic range; electronic warfare; gain; interface; linear amplifier; sensitivity; surveillance; theoretical receiver performance; third-order intermodulation products; Analog-digital conversion; Bandwidth; Dynamic range; Microwave amplifiers; Noise figure; Noise generators; Noise level; Noise reduction; Power amplifiers; Power generation;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.366307

Filename

366307