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Chirp (other)
A chirp is a signal in which the frequency increases or decreases with time. Chirp may also refer to: Sounds * Bird vocalization * Chirp (rubbing sound), or stridulation, the act of producing sound by rubbing together certain body parts * Chirp (scratch), a type of scratch performed by turntablists Science and technology * CHIRP (algorithm), an algorithm used to perform a deconvolution on radio astronomy images * Chirp (company), a UK technology company * Chirp (phone), a walkie-talkie service on Sprint-Nextel's iDEN-phones * ChiRP-Seq, a biological methodology to identify DNA regions or proteins that are bound to a RNA molecule of interest Arts and entertainment * ''Chirp'' (magazine), a Canadian children's magazine * ''Chirp'' (TV series), a Canadian children's animated series * "Chirp" (''Modern Family''), a television episode *Chirp, a robin in the TV series ''Peep and the Big Wide World ''Peep and the Big Wide World'' is an Animated series, animated children's tele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chirp
A chirp is a signal in which the frequency increases (''up-chirp'') or decreases (''down-chirp'') with time. In some sources, the term ''chirp'' is used interchangeably with sweep signal. It is commonly applied to sonar, radar, and laser systems, and to other applications, such as in spread-spectrum communications (see chirp spread spectrum). This signal type is biologically inspired and occurs as a phenomenon due to dispersion (a non-linear dependence between frequency and the propagation speed of the wave components). It is usually compensated for by using a matched filter, which can be part of the propagation channel. Depending on the specific performance measure, however, there are better techniques both for radar and communication. Since it was used in radar and space, it has been adopted also for communication standards. For automotive radar applications, it is usually called linear frequency modulated waveform (LFMW). In spread-spectrum usage, surface acoustic wave (S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
