Optical signal filtering method in three-component laser doppler anemometers

Rakhmanov, V. V.; Pavlov, Vladimir; Bakakin, G. V.; Dvoynishnikov, S. V.

doi:10.33764/2618-981x-2022-8-1-99-104

Cited by 1 publication

(1 citation statement)

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“…In addition to altitude and airspeed estim ation, the constant wind field m ethod can also be used to estim ate the angle of attack and angle of sideslip when the air data sensor is reliable. In future work, the increasing m aturity of airborne laser anem om eters referring to literature [12][13][14] can be leveraged to m easure wind fields and optim ize the constant wind filed m ethod.…”

Section: Discussionmentioning

confidence: 99%

Real-time estimation of altitude and airspeed under large airflow angles in flight test

Zhubin

Ruikun

2023

J. Phys.: Conf. Ser.

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In the flight test, many test subjects need to enter the large airflow angle. Due to the large airflow angle, the position error of air data sensor is big, and the altitude and airspeed of the aircraft are not accurate, which not only affects the effectiveness of the test results, but also affects the safety of the test flight. This paper proposes two real-time altitude and airspeed estimation methods, including the GPS method and constant wind field method. The GPS method is commonly used in the airspeed calibration, which mainly uses the GPS height change to correct the static pressure, but it depends on the aircraft total pressure sensor to get the airspeed. The constant wind field method directly calculates the true airspeed not depending on the pressure measurement, but it is greatly affected by the wind stability. During the flight test, using this method, the real-time monitoring can provide pilots with accurate altitude and airspeed reference.

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Section: Discussionmentioning

confidence: 99%