Research of low-airspeed measurement based on optical Doppler frequency shift

WANG Xiaowei; LIANG Yingjian; LI Xiang; LONG Yanzhi; MEI Yunqiao

doi:10.7510/jgjs.issn.1001-3806.2016.05.003

In order to solve the incorrect low-airspeed detection of traditional air data system, a low-airspeed detection method based on optical Doppler frequency shift was founded. An experimental prototype was built by using fast Fourier transform as data processing framework. By the experiment of standard wind tunnel, the system can measure minimum wind speed of 0.22m/s. The results show that the system has high resolution and stability at different wind speeds.

Research of low-airspeed measurement based on optical Doppler frequency shift

1. Chengdu CAIC Electronics Co. Ltd., Aviation Industry Corporation of China, Chengdu 610091, China

Received Date: 2015-07-19

Accepted Date: 2015-09-22

Available Online: 2016-09-25

Abstract: In order to solve the incorrect low-airspeed detection of traditional air data system, a low-airspeed detection method based on optical Doppler frequency shift was founded. An experimental prototype was built by using fast Fourier transform as data processing framework. By the experiment of standard wind tunnel, the system can measure minimum wind speed of 0.22m/s. The results show that the system has high resolution and stability at different wind speeds.

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Reference (15)

[1]	LI G W.Aircraft's flight velocity[J].Air Traffic Management,2002(5):25(in Chinese).
[2]	WANG Y,YAO K M.Study on output characteristics of pilot tube for civil aircraft[J].Science and Technology Innovation Herald,2013(3):17-20(in Chinese).
[3]	WANG M,ZHOU S D,WANG Y J,et al.Influencing factors on measurement of wind speed using pitot tube[J].Research and Exploration in Laboratory,2010,29(3):35-37(in Chinese).
[4]	ZHOU L,XU H J,GONG S K,et al.Research of aircraft icing cha-racteristics and antiicing and deicing technology[J].China Safety Science Journal,2010,20(6):105-109(in Chinese).
[5]	L W T,LUO C,HUANG J X.Study for effects on reliablity of ma-nufacturing cost of avionics system[J].Electronic ScienceTechnology,2015,3(2):291-294(in Chinese).
[6]	SPULER S M.Optical fiber-based laser remote sensor for airborne measurement of wind velocity and turbulence[J].Applied Optics,2011,50(6):842-851.
[7]	XIONG X M,ZHU J F,WANG L.All optical fiber interferometer system with anti-disturbance and its application[J].Laser Technology,2013,37(6):795-798(in Chinese).
[8]	WATKINS C B,RICHEY C J,TCHORYK P,et al.Molecular optical air data system (MOADS) flight experiment[J].Proceedings of the SPIE,2003,5086:236-245.
[9]	YAO M,ZHANG L,XU C W,et al.Modeling and simulation of slant path scattering of 1.064m laser in atmosphere[J].Laser Technology,2012,36(3):394-397(in Chinese).
[10]	LIU B,TAO W,KE Z G,et al.Balance coherent detection techno-logy of coherent lidar[J].Laser Technology,2015,39(1):46-49(in Chinese).
[11]	REN Z H.The harmonic parameter estimation algorithm based on the FFT window functions[J].Electrical MeasurementInstrumentation,2010,47(5):8-12(in Chinese).
[12]	ALAN V.Oppenheim signal and system[M].Beijing:Publishing House of Electronics Industry,2000:254-257(in Chinese).
[13]	FAN X H,CHEN H B,XIA X A.Progress in observation studies of atmospheric aerosol radiative properties in China[J].Chinese Journal of Atmospheric Sciences,2013,37(2):477-498(in Chinese).
[14]	KARLSSON C J,OLSSON F A,LETALICK D,et al.All-fiber multifunction continuous-wave coherent laserradar at 1.55mm for range,speed,vibration,and wind measurements[J].Applied Optics,2000,39(21):3716-3726.
[15]	QI G Q.Accuracy analysis and comparison of some FFT based frequency estimators[J].Journal of Vibration Engineering,2006,19(1):86-92(in Chinese).

Research of low-airspeed measurement based on optical Doppler frequency shift

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