Spread spectrum technology for low power PCS applications. (personal communication services)(includes related article)

Recent advances in integrated circuits (IC) have reduced the cost of spread spectrum designs and increased the total spreading possible in low power, low cost radio frequency (RF) data moderns. The latest IC designs allow up to 63 million chips per second, pseudorandom (PN) code lengths selected from 10 to 2047 and data rates up to 2 Mbps. PN codes are bit sequences that are unrelated to each other. This class of spread spectrum operation is now supported by ICs costing less than 20 dollars in large volumes. Therefore, a low cost direct sequence system can spread a signal and easily fill 100 MHz of bandwidth. The reasons to increase the spreading and the advantages of spread ...

Related newspaper, magazine, and journal articles:

See all results. Or, try our Advanced Search.

Newsweek Harper's Magazine The Washington Post Chicago Tribune Crain's Chicago Business PRNewswire Pediatric News The Nation Advertising Age The Economist (US) A FREE trial gives you access to over 60 million articles! Access over 3,500 publications with a FREE trial!