국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	COMPARISON OF THREE WIND MEASURING SYSTEMS FOR FLIGHT TEST
저자	Edward H. Teets, Jr. and Philip O. Harvey
Keyword	Atmospheric science; Flight test; GPS rawinsonde; RADAR; Rawinsonde.
URL	http://www.dfrc.nasa.gov/DTRS/2000/PDF/H-2415.pdf
보고서번호	H-2415
발행년도	2000
출처	NASA Dryden Flight Research Center
ABSTRACT	A preliminary field test of the accuracy of wind velocity measurements obtained using global positioning system뻯racked rawinsonde balloons has been performed. Wind comparisons have been conducted using global positioning system (GPS) and radio automatic theodolite sounder (RATS) rawinsondes and a high-precision range instrumention radar뻯racked reflector. Wind velocity differences between the GPS rawinsondes and the radar were significantly less than between the RATS rawinsondes and the radar. These limited test results indicate a root-mean-square wind velocity difference from 4.98 kn (2.56 m/sec) for the radar and RATS to 1.09 kn (0.56 m/sec) for the radar and GPS. Differences are influenced by user reporting requirements, data processing techniques, and the inherent tracking accuracies of the system. This brief field test indicates that the GPS sounding system tracking data are more precise than the RATS system. When high-resolution wind data are needed, use of GPS rawinsonde systems can reduce the burden on range radar operations.