spread spectrum communication
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Spread spectrum — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Frequency-hopping spread spectrum — (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. A spread spectrum transmission offers three main advantages over… … Wikipedia
Chirp spread spectrum — A linear frequency modulated upchirp in the time domain In digital communications, Chirp spread spectrum (CSS) is a spread spectrum technique that uses wideband linear frequency modulated chirp pulses to encode information.[1] A chirp is a… … Wikipedia
Direct-sequence spread spectrum — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Frequency-Hopping Spread Spectrum — Pile de protocoles 7 • Application 6 • Présentation 5 • Session 4 • … Wikipédia en Français
Frequency-hopping spread spectrum — Pile de protocoles 7. Application 6. Présentation 5. Session 4. Tr … Wikipédia en Français
Communication with submarines — is difficult because radio waves do not travel well through thick electrical conductors like salt water. The obvious solution is to surface and raise an antenna above the water, then use ordinary radio transmissions. Early submarines had to… … Wikipedia
Timeline of communication technology — * Prior to 3500BC Communication was carried out through paintings of indigenous tribes. * 3500s BC The Sumerians develop cuneiform writing and the Egyptians develop hieroglyphic writing * 1500s BC The Phoenicians develop an alphabet * 26 37 Roman … Wikipedia
Communication skills training — Various types and forms of the Group Communication Skills Training are used all over the world for those who are trying to improve their communication (social, interpersonal, negotiating etc.) skills. Thousands of books and articles devoted to… … Wikipedia
Cellular data communication protocol — The protocols described here are from the Cellular Data Communication Protocol.GSM and CDMA protocols described here include: *BSMAP Base Station Management Application Part *BSSAP BSS Application Part *BSSLAP *BSSAPLE *BSSMAP BSS Management… … Wikipedia
