spread spectrum การใช้

• DCS command signals are transmitted at 10.7 MHz using spread spectrum technology.
• Widespread digital spread spectrum technology and encryption has made eavesdropping increasingly difficult.
• Spread spectrum puts a single transmission over a wide range of frequencies.
• Worse still, we're adopting complex multiplexed digital signalling and employing'spread spectrum'techniques.
• Frequency hopping is a basic modulation technique used in spread spectrum signal transmission.
• In 1995, digital spread spectrum ( DSS ) was introduced for cordless phones.
• Spread spectrum systems rely on excess signal to noise ratios for sharing of spectrum.
• Some wireless intercom designs reduce this interference by using " digital spread spectrum ".
• The PN encoding is a form of spread spectrum modulation.
• The new 2 . 4-gigahertz phones are all spread spectrum.
• He also co-authored the " Spread Spectrum Communications Handbook " ( ISBN 0071382151 ).
• The above systems and radio interfaces are based on spread spectrum radio transmission technology.
• This technique is now known as spread spectrum and is widely used in telecommunications.
• A thin client architecture was adopted in conjunction with a spread spectrum radio network.
• Newer Transmitters use spread spectrum technology in the 2.4 GHz, upper-UHF frequency band for communication.
• Seeing the commercial possibilities for spread spectrum, Jacobs founded Qualcomm in San Diego in 1985.
• Digital transmission such as Frequency-hopping spread spectrum provides a level of protection from casual interception.
• DECT also provides Frequency-hopping spread spectrum over TDMA / TDD structure for ISM band applications.
• Spread spectrum systems do not violate the Shannon limit.
• Spread spectrum signals are sent down the wire and then the reflected signal is observed.