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- ...penalty for sound production during evenings and nights is due to higher [[Noise pollution|nuisance perception]] during quieter hours and to prevent [[sleep Where the long-term average noise levels are defined as: ...3 KB (478 words) - 09:56, 24 October 2024
- ...wer spectral densities, so exact filters can be designed that take [[white noise]] inputs and output stochastic processes with the Dryden gusts' power spect ...Consider a [[LTI system theory|linear time invariant system]] with a white noise input that has unit [[variance]], [[transfer function]] ''G''(''s''), and o ...7 KB (1,134 words) - 14:22, 5 August 2024
- ...l]] power spectral densities, so filters can be designed that take [[white noise]] inputs and output stochastic processes with the approximated von Kármán g ...Consider a [[LTI system theory|linear time invariant system]] with a white noise input that has unit [[variance]], [[transfer function]] ''G''(''s''), and o ...9 KB (1,431 words) - 12:16, 17 February 2025
- ...ub>max</sub>/σ<sub>''y''</sub> > 2}} and for [[noise bandwidth|narrow band noise]].{{sfn|Hoblit|1988|pp=51–54}} * Gust loads on aircraft{{sfn|Hoblit|1988|loc=Chap. 4}} ...8 KB (1,147 words) - 22:17, 9 August 2023
- ...ements for the models of continuous gusts used in design and simulation of aircraft.<ref name="14CFRPart25">{{cite web|last = 14 CFR Part 25: Appendix G | titl ...s gusts are not [[white noise]], filters can be designed that take a white noise input and output a random process with the Dryden or von Kármán models.<ref ...12 KB (1,753 words) - 20:12, 10 September 2023
- ...to serve as a [[Vibrator (mechanical)|vibrator]]. An example of this is an aircraft's [[stick shaker]]. * [[Noise]] ...6 KB (907 words) - 16:30, 10 December 2024
- ...describes a variety of techniques used for finding moving objects, like an aircraft, and filter out unmoving ones, like hills or trees. It contrasts with the m ...noise effects that made them useful only for strong signals, generally for aircraft or ship detection. ...10 KB (1,627 words) - 16:45, 19 July 2022
- ...peller]]s. A propeller is the most common propulsor on ships, and on small aircraft. ...h a counterweight have also been used. Lightly loaded propellers for light aircraft and human-powered boats mostly have two blades, motor boats mostly have thr ...16 KB (2,640 words) - 17:34, 5 December 2024
- An '''acoustic camera''' (or '''noise camera''') is an [[imaging]] device used to locate sound sources and to cha ...006/Papers/BeBeC-2006-17_Meyer_Doebler.pdf Meyer, Andy, and Döbler, Dirk. "Noise source localization within a car interior using 3D-microphone arrays." Proc ...14 KB (2,134 words) - 14:51, 12 January 2025
- {{Short description|Signal processing technique to reduce noise}} .... (December 1975) "[https://ieeexplore.ieee.org/document/1451965 Adaptive Noise Cancelling: Principles and Applications]," Proc. IEEE, Vol. 63, '''DOI:''' ...32 KB (4,808 words) - 04:15, 22 November 2024
- ...aft at speed = C<sub>u</sub>; then Useful Power = Axial Thrust * Speed of Aircraft;<ref name="Yahya2010"/> ...improper design, fan physical properties and are generally accompanied by noise generation. ...20 KB (3,071 words) - 22:57, 6 November 2024
- where <math> w,v </math> are independent [[white Gaussian noise]]s. ...X,U,Y)=(\varphi_g(x),\psi_g(u),\rho_g(y))</math>. The previous system with noise is said to be ''[[Invariant (mathematics)|invariant]]'' if it is left uncha ...12 KB (2,127 words) - 05:12, 22 November 2024
- ...ta extraction|Data is extracted]] and recorded from the radar system while aircraft, balloons, ships, drones, missiles or other objects are moved within the ra ...waves but no attenuation for low power microwaves. This produces microwave noise during the setup-time at the end of the transmit pulse. ...9 KB (1,291 words) - 14:05, 5 June 2024
- ...ng to different frequencies that separate weather phenomenon, terrain, and aircraft into different velocity zones at each range. ...nals. This is an adaptive process that adjusts automatically to background noise and environmental influences. There is a '''cell under test''', where the s ...16 KB (2,366 words) - 14:15, 10 January 2024
- ...date=March 1973|title=Statistical properties of two sine waves in Gaussian noise|journal=IEEE Transactions on Information Theory|volume=19|issue=2|doi=10.11 ..., notably Rayleigh. Jeff Frolik was the first to measure TWDP fading in an aircraft fuselage, coining the term ''hyper-Rayleigh'' to denote this and other fadi ...12 KB (1,757 words) - 09:56, 2 January 2024
- ...M]] [[integrating ADC|dual slope ADCs]] (suppresses [[mains hum|50 Hz noise]]) ...M]] [[integrating ADC|dual slope ADCs]] (suppresses [[mains hum|60 Hz noise]]) ...91 KB (11,342 words) - 02:39, 11 December 2024
- ..., which is slower than the aircraft, and cannot propagate forward from the aircraft, instead forming a conical [[shock wave|shock front]]. In a similar way, a * [[Colors of noise#Blue noise|Blue noise]] ...37 KB (5,333 words) - 19:32, 20 February 2025
- ...cs]], electro-acoustics, [[environmental noise]], [[musical acoustics]], [[noise control]], [[psychoacoustics]], [[speech]], [[ultrasound]], [[underwater a ...nent parts, which are a combination of various sound wave frequencies (and noise).<ref name="Handel, S. 1995">Handel, S. (1995). [https://books.google.com/b ...37 KB (5,332 words) - 12:30, 2 January 2025
- ...lane |date= May 25, 2005 |author=Hawk, Jeff |conference=AIAA/AAAF Aircraft Noise and Emissions Reduction Symposium |website=[[American Institute of Aeronaut ...14 KB (1,889 words) - 15:11, 28 February 2025
- ...e, the resistor typically is located near the encoder interface to improve noise immunity. ...ndustrial robot]]ics, factory automation, and [[motion platform]]s used in aircraft and spacecraft simulators. ...39 KB (5,727 words) - 15:55, 4 September 2024