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- Pseudorandom_noise abstract "In cryptography, pseudo random noise (PRN) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. Although it seems to lack any definite pattern, pseudo random noise consists of a deterministic sequence of pulses that will repeat itself after its period.In cryptographic devices, the pseudo random noise pattern is determined by a key and the repetition period can be very long, even millions of digits.Pseudo random noise is used in some electronic musical instruments, either by itself or as an input to subtractive synthesis, and in many white noise machines.In spread-spectrum systems, the receiver correlates a locally generated signal with the received signal.Such spread-spectrum systems require a set of one or more "codes" or "sequences" such that Like random noise, the local sequence has a very low correlation with any other sequence in the set, or with the same sequence at a significantly different time offset, or with narrow band interference, or with thermal noise. Unlike random noise, it must be easy to generate exactly the same sequence at both the transmitter and the receiver, so the receiver's locally generated sequence has a very high correlation with the transmitted sequence.In a direct-sequence spread spectrum system, each bit in the pseudorandom binary sequence is known as a chip and the inverse of its period as chip rate; compare bit rate and symbol rate.In a frequency-hopping spread spectrum sequence, each value in the pseudo random sequence is known as a channel number and the inverse of its period as the hop rate. FCC Part 15 mandates at least 50 different channels and at least a 2.5 Hz hop rate for narrow band frequency-hopping systems.GPS satellites broadcast data at a rate of 50 data bits per second – each satellite modulates its data with one PN bit stream at 1.023 million chips per second and the same data with another PN bit stream at 10.23 million chips per second.GPS receivers correlate the received PN bit stream with a local reference to measure distance. GPS is a receive-only system that uses relative timing measurements from several satellites (and the known positions of the satellites) to determine receiver position.Other range-finding applications involve two-way transmissions.A local station generates a pseudo random bit sequence and transmits it to the remote location (using any modulation technique).Some object at the remote location echoes this PN signal back to the location station – either passively, as in some kinds of radar and sonar systems, or using an active transponder at the remote location, as in the Apollo Unified S-band system.By correlating a (delayed version of) the transmitted signal with the received signal, a precise round trip time to the remote location can be determined and thus the distance.".
- Pseudorandom_noise wikiPageID "41593".
- Pseudorandom_noise wikiPageLength "4512".
- Pseudorandom_noise wikiPageOutDegree "40".
- Pseudorandom_noise wikiPageRevisionID "672516098".
- Pseudorandom_noise wikiPageWikiLink Algorithmically_random_sequence.
- Pseudorandom_noise wikiPageWikiLink Barker_code.
- Pseudorandom_noise wikiPageWikiLink Bit_rate.
- Pseudorandom_noise wikiPageWikiLink Category:Noise.
- Pseudorandom_noise wikiPageWikiLink Category:Pseudorandomness.
- Pseudorandom_noise wikiPageWikiLink Chip_(CDMA).
- Pseudorandom_noise wikiPageWikiLink Chip_rate.
- Pseudorandom_noise wikiPageWikiLink Chips_per_second.
- Pseudorandom_noise wikiPageWikiLink Correlation.
- Pseudorandom_noise wikiPageWikiLink Correlation_and_dependence.
- Pseudorandom_noise wikiPageWikiLink Cryptography.
- Pseudorandom_noise wikiPageWikiLink Deterministic_automaton.
- Pseudorandom_noise wikiPageWikiLink Deterministic_computation.
- Pseudorandom_noise wikiPageWikiLink Direct-sequence_spread_spectrum.
- Pseudorandom_noise wikiPageWikiLink FCC_Part_15.
- Pseudorandom_noise wikiPageWikiLink Frequency-hopping_spread_spectrum.
- Pseudorandom_noise wikiPageWikiLink GPS.
- Pseudorandom_noise wikiPageWikiLink Global_Positioning_System.
- Pseudorandom_noise wikiPageWikiLink Gold_code.
- Pseudorandom_noise wikiPageWikiLink Kasami_code.
- Pseudorandom_noise wikiPageWikiLink Key_(cryptography).
- Pseudorandom_noise wikiPageWikiLink Maximal_length_sequence.
- Pseudorandom_noise wikiPageWikiLink Maximum_length_sequence.
- Pseudorandom_noise wikiPageWikiLink Noise_(electronics).
- Pseudorandom_noise wikiPageWikiLink Noise_(physics).
- Pseudorandom_noise wikiPageWikiLink Pattern.
- Pseudorandom_noise wikiPageWikiLink Pseudorandom_binary_sequence.
- Pseudorandom_noise wikiPageWikiLink Pseudorandom_number_generator.
- Pseudorandom_noise wikiPageWikiLink Pseudorandomness.
- Pseudorandom_noise wikiPageWikiLink Pulse_(signal_processing).
- Pseudorandom_noise wikiPageWikiLink Range-finding.
- Pseudorandom_noise wikiPageWikiLink Rangefinder.
- Pseudorandom_noise wikiPageWikiLink Sequence.
- Pseudorandom_noise wikiPageWikiLink Signal_(electrical_engineering).
- Pseudorandom_noise wikiPageWikiLink Signal_(information_theory).
- Pseudorandom_noise wikiPageWikiLink Signaling_(telecommunications).
- Pseudorandom_noise wikiPageWikiLink Signalling_(telecommunication).
- Pseudorandom_noise wikiPageWikiLink Spread-spectrum.
- Pseudorandom_noise wikiPageWikiLink Spread_spectrum.
- Pseudorandom_noise wikiPageWikiLink Statistical_randomness.
- Pseudorandom_noise wikiPageWikiLink Subtractive_synthesis.
- Pseudorandom_noise wikiPageWikiLink Symbol_rate.
- Pseudorandom_noise wikiPageWikiLink Synthesizer.
- Pseudorandom_noise wikiPageWikiLink Title_47_CFR_Part_15.
- Pseudorandom_noise wikiPageWikiLink Unified_S-band.
- Pseudorandom_noise wikiPageWikiLink White_noise.
- Pseudorandom_noise wikiPageWikiLink White_noise_machine.
- Pseudorandom_noise wikiPageWikiLinkText "PRN coding".
- Pseudorandom_noise wikiPageWikiLinkText "PRN".
- Pseudorandom_noise wikiPageWikiLinkText "Pseudo Noise (PN)".
- Pseudorandom_noise wikiPageWikiLinkText "Pseudorandom noise".
- Pseudorandom_noise wikiPageWikiLinkText "noise".
- Pseudorandom_noise wikiPageWikiLinkText "pseudo noise (PN) code".
- Pseudorandom_noise wikiPageWikiLinkText "pseudo-noise sequences".
- Pseudorandom_noise wikiPageWikiLinkText "pseudonoise".
- Pseudorandom_noise wikiPageWikiLinkText "pseudorandom noise".
- Pseudorandom_noise wikiPageWikiLinkText "spreading code".
- Pseudorandom_noise hasPhotoCollection Pseudorandom_noise.
- Pseudorandom_noise wikiPageUsesTemplate Template:Cdma.
- Pseudorandom_noise wikiPageUsesTemplate Template:Main.
- Pseudorandom_noise wikiPageUsesTemplate Template:Reflist.
- Pseudorandom_noise subject Category:Noise.
- Pseudorandom_noise subject Category:Pseudorandomness.
- Pseudorandom_noise hypernym Signal.
- Pseudorandom_noise type Article.
- Pseudorandom_noise type Broadcaster.
- Pseudorandom_noise type Article.
- Pseudorandom_noise type Method.
- Pseudorandom_noise type Source.
- Pseudorandom_noise comment "In cryptography, pseudo random noise (PRN) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness.".
- Pseudorandom_noise label "Pseudorandom noise".
- Pseudorandom_noise sameAs ضجيج_مزيف.
- Pseudorandom_noise sameAs Pseudozufallsrauschen.
- Pseudorandom_noise sameAs רעש_פסאודו-אקראי.
- Pseudorandom_noise sameAs m.0bf4n.
- Pseudorandom_noise sameAs Q910571.
- Pseudorandom_noise sameAs Q910571.
- Pseudorandom_noise wasDerivedFrom Pseudorandom_noise?oldid=672516098.
- Pseudorandom_noise isPrimaryTopicOf Pseudorandom_noise.