In telecommunications, especially radio communication, spread spectrum are techniques by which a signal (e.g., an electrical, electromagnetic, or acoustic)...
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In digital communications, chirp spread spectrum (CSS) is a spread spectrum technique that uses wideband linear frequency modulated chirp pulses to encode...
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Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly changing the carrier frequency among many frequencies occupying...
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In telecommunications, direct-sequence spread spectrum (DSSS) is a spread-spectrum modulation technique primarily used to reduce overall signal interference...
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permit this without undue interference between the users, CDMA employs spread spectrum technology and a special coding scheme (where each transmitter is assigned...
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innovations such as trunked radio systems, spread spectrum, ultra-wideband, frequency reuse, dynamic spectrum management, frequency pooling, and cognitive...
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Digital watermarking (redirect from Spread Spectrum Watermarking)
The first successful embedding and extraction of a steganographic spread spectrum watermark was demonstrated in 1993 by Andrew Tirkel, Gerard Rankin...
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co-invented a radio guidance system for Allied torpedoes that used spread spectrum and frequency hopping technology to defeat the threat of radio jamming...
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Audio watermark (section Spread spectrum)
and ownership verification. One technique for audio watermarking is spread spectrum audio watermarking (SSW). In SSW, a narrow-band signal is transmitted...
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Phase-locked loop (section Spread spectrum)
designer can use a spread-spectrum PLL to reduce interference with high-Q receivers by spreading the energy over a larger portion of the spectrum. For example...
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Spread-spectrum time-domain reflectometry (SSTDR) is a measurement technique to identify faults, usually in electrical wires, by observing reflected spread...
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communication technique. It is based on spread spectrum modulation techniques derived from chirp spread spectrum (CSS) technology. It was developed by Cycleo...
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also known as Trellis modulation Spread spectrum techniques Direct-sequence spread spectrum (DSSS) Chirp spread spectrum (CSS) according to IEEE 802.15...
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In a spread-spectrum system, the process gain (or "processing gain") is the ratio of the spread (or RF) bandwidth to the unspread (or baseband) bandwidth...
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design. High peaks at single frequencies can be avoided by using the spread spectrum method, in which different parts of the circuit emit at different frequencies...
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Video sender (section Spread-spectrum)
technologies exist, including analogue wireless (radio), digital wireless (spread-spectrum, Wi-Fi, ultra-wideband) and digital wired (power-line communication)...
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inexpensive, and should be given scheduling priority. In the uplink of a spread spectrum cellular system, the carrier-to-interference ratio (CIR) is held constant...
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Channel allocation schemes (section Spread spectrum)
Dynamic: DCA, dynamic channel allocation DFS, dynamic frequency selection Spread spectrum In Fixed Channel Allocation or Fixed Channel Assignment (FCA) each...
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complex signals and detect reflections with correlation techniques. See spread-spectrum time-domain reflectometry. The equivalent device for optical fiber...
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systems, and to other applications, such as in spread-spectrum communications (see chirp spread spectrum). This signal type is biologically inspired and...
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frequency-hopping spread spectrum (FHSS), where the channel frequency is changed rapidly according to a sequence that constitutes the spreading code. As an...
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spread spectrum, which uses extremely wide frequency deviations to achieve processing gains comparable to traditional, better-known spread-spectrum modes)...
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IEC 61334 (redirect from Spread-spectrum frequency shift keying)
interface. S-FSK (spread frequency-shift keying) is a modulation scheme that combines some of the advantages of classical spread-spectrum modulation (immunity...
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multiplexing techniques such as frequency-hopping spread spectrum (FHSS) and direct-sequence spread spectrum (DSSS). In wireless communications, multiplexing...
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Jourdan, "Orthogonal multicarrier techniques applied to direct sequence spread spectrum CDMA systems," in Proceedings of Global Telecommunications Conference...
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Chip (CDMA) (redirect from Spread factor)
In digital communications, a chip is a pulse of a direct-sequence spread spectrum (DSSS) code, such as a pseudo-random noise (PN) code sequence used in...
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antenna device to relay calls from one area to the next area. Radio and spread spectrum technologies – Wireless local area networks use a high-frequency radio...
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support for the so-called separate reference clock with independent spread spectrum clocking (SRIS) with some of its pre-production SATA Express hardware...
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method of spread-spectrum communication. When used only for the spread-spectrum property, this technique is called direct-sequence spread spectrum; when used...
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Radio-controlled helicopter (section Spread spectrum)
reliable than the new spread spectrum protocols. Systems such as Spektrum and JR use the DSM2 and later, DSMX direct-sequence spread spectrum (DSSS) method,...
27 KB (3,340 words) - 03:28, 30 May 2025