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Pulse-position modulation

Pulse-position modulation (PPM) is a form of signal modulation in which M message bits are encoded by transmitting a single pulse in one of 2 M {\displaystyle 2^{M}} possible required time shifts. This is repeated every T seconds, such that the transmitted bit rate is M / T {\displaystyle M/T} bits per second. It is primarily useful for optical…

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Overview

History

Synchronization

Sensitivity to multipath interference

Non-coherent detection

PPM vs. M-FSK

Applications for RF communications

PPM encoding for radio control

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Pulse-position modulation

Nodes37
Edges36
Triples14
Avg. degree1.95
Density0.054054
Components1

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Pulse-position modulation

Top relations

related to history · 11
Pulse-position modulation → Aeneas Stymphalus, An, Don Mathers, Doug Spreng, Greek, In, NASA, PPM, R/C, The, To
related to Synchronization · 3
Pulse-position modulation → It, One, Therefore

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Important terminology

ppm modulation pulse systems used signal one pulse-position possible time multipath m-fsk communications receiver radio control position channels fading encoded

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Pulse-position modulationrelated to historyAn0.60section
Pulse-position modulationrelated to historyGreek0.60section
Pulse-position modulationrelated to historyAeneas Stymphalus0.60section
Pulse-position modulationrelated to historyIn0.60section
Pulse-position modulationrelated to historyThe0.60section
Pulse-position modulationrelated to historyTo0.60section
Pulse-position modulationrelated to historyDon Mathers0.60section
Pulse-position modulationrelated to historyDoug Spreng0.60section
Pulse-position modulationrelated to historyNASA0.60section
Pulse-position modulationrelated to historyR/C0.60section
Pulse-position modulationrelated to historyPPM0.60section
Pulse-position modulationrelated to SynchronizationOne0.60section

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