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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 . [ 1 ] It is commonly applied to sonar , radar , and laser systems, and to other applications, such as in spread-spectrum communications (see chirp spread spectrum ).
The spectrum of a chirp pulse describes its characteristics in terms of its frequency components. This frequency-domain representation is an alternative to the more familiar time-domain waveform, and the two versions are mathematically related by the Fourier transform.
Chirp (voiced by Jacob Ewaniuk) is a male yellow bird who wears red boots. Squawk (voiced by Adrian David Lloyd) is a male blue bird. Tweet (voiced by Brianna D'Aguanno) is a female orange bird who has purple spots. Sparky (voiced by Elana Durtnall) is a dog who gives advice and explains what item Chirp, Squawk, and Tweet have.
In digital communications, chirp spread spectrum (CSS) is a spread spectrum technique that uses wideband linear frequency modulated chirp pulses to encode information. [1] A chirp is a sinusoidal signal whose frequency increases or decreases over time (often with a polynomial expression for the relationship between time and frequency).
Chirp was launched in 2019, and is owned and operated by the founders of BookBub, an online book discovery service. [5] [6] Although Chirp was launched more recently, BookBub and its parent company Pubmark Inc. have been around since 2012, when it was founded by Josh Schanker and Nicholas Ciarelli.
A chirp transmitter is a shortwave radio transmitter that sweeps the HF radio spectrum on a regular schedule. If one is monitoring a specific frequency, then a chirp is heard (in CW or SSB mode) when the signal passes through.
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
Chirp (also known as Asio Limited) was a technology company based in the UK. [1] Chirp was originally a research project from UCL and was incorporated as a UK limited company in 2012. [ 2 ] Chirp specialised in data-over-sound software development kits , [ 3 ] which converted data into audio signals, which could be transmitted to other devices ...