FIR

See also: fir, fir-, and fír

English

Adjective

FIR (not comparable)

1. (signal processing, of a filter) Initialism of finite impulse response; that has impulse response (or response to any finite length input) of finite duration.

Noun

FIR (plural FIRs)

1. (aviation) Initialism of flight information region; a specified region of airspace in which a flight information service and an alerting service (ALRS) are provided

Anagrams

• Fri, IFR, IRF, RFI, RIF, Rif, rif