Adjacent and co-channel interference from direct sequence spread spectrum systems on analog PAL

Author

Dres, Dimitris

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens

Volume

47

Issue

3

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

297

Lastpage

307

Abstract

This paper presents extensive results of a laboratory test held to examine the conditions under which analog PAL-G and spread spectrum systems can share spectrum. RF TV protection ratios for adjacent and co-channel spread spectrum interference are derived. For the PAL signal two different received levels, giving undistorted baseband SNR 42 and 37 dB respectively, are examined. Different spread spectrum RF bandwidths and carrier frequency offsets between the analog and digital signal are also included in the experiments. Results for all possible interference conditions and cases are presented in tables and 3-D charts

Keywords

adjacent channel interference; cochannel interference; digital radio; spread spectrum communication; television interference; video signals; DS-SS; PAL signal; RF TV protection ratios; RF bandwidth; adjacent channel interference; analog PAL-G systems; analog signal; carrier frequency offsets; co-channel spread spectrum interference; digital signal; digital spread spectrum systems; direct sequence spread spectrum systems; frequency planning; laboratory test results; spectrum sharing; undistorted baseband SNR; Bandwidth; Baseband; Interchannel interference; Laboratories; Protection; Radio frequency; Radiofrequency interference; Spread spectrum communication; System testing; TV interference;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.969379

Filename

969379