Spread Spectrum

Spread Spectrum

In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g. an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. These techniques are used for a variety of reasons, including the establishment of secure communications, increasing resistance to natural interference, noise and jamming, to prevent detection, and to limit power flux density (e.g. in satellite downlinks).

Read more about Spread Spectrum:  Spread-spectrum Telecommunications, Spread-spectrum Clock Signal Generation

Other articles related to "spread spectrum, spread, spectrum":

Radio-controlled Aircraft - Frequencies and Sub-channels - Channels
... aircraft (except for 2.4 GHz systems which use spread spectrum modulation, described below) ... Newer Transmitters use spread spectrum technology in the 2.4 GHz frequency for communication ... Spread spectrum technology allows many pilots to transmit in the same band (2.4 GHz) in close proximity to each other with little fear of conflicts ...
Synchronous Code Division Multiple Access - Asynchronous CDMA - Spread-spectrum Characteristics of CDMA
... However, spread spectrum techniques use a transmission bandwidth that is several orders of magnitude greater than the minimum required signal bandwidth ... These systems were designed using spread spectrum because of its security and resistance to jamming ... has some level of privacy built in because the signal is spread using a pseudo-random code this code makes the spread spectrum signals appear random or have noise-like properties ...
Soundcast - Technology
... Soundcast employs Spread Spectrum technology ... principle ways this can be done Frequency Hopping Spread Spectrum (FHSS)—such as used by Bluetooth, and Direct Sequencing Spread Spectrum (DSSS)—such as used by 802.11b ...
Chirp Spread Spectrum
... In digital communications, chirp spread spectrum (CSS) is a spread spectrum technique that uses wideband linear frequency modulated chirp pulses to encode ...
Spread Spectrum - Spread-spectrum Clock Signal Generation
... Spread-spectrum clock generation (SSCG) is used in some synchronous digital systems, especially those containing microprocessors, to reduce the spectral density of ... periodic nature, has an unavoidably narrow frequency spectrum ... energy on a number of narrow bands spread on the clock frequency and its harmonics, resulting in a frequency spectrum that, at certain frequencies, can exceed the regulatory limits for ...

Famous quotes containing the word spread:

    We have seen when the earth had to be prepared for the habitation of man, a veil, as it were, of intermediate being was spread between him and its darkness, in which were joined in a subdued measure, the stability and insensibilty of the earth, and the passion and perishing of mankind.
    John Ruskin (1819–1900)