• Title/Summary/Keyword: 대기모델

Search Result 1,695, Processing Time 0.031 seconds

Model Calculation of Total Radiances for KOMPSAT-2 MSC (다목적실용위성 2호 MSC 총복사량의 모델 계산)

  • 김용승;강치호
    • Korean Journal of Remote Sensing
    • /
    • v.17 no.3
    • /
    • pp.211-218
    • /
    • 2001

  • We have performed the calculation of total radiances for the KOMPSAT-2 Multispectral Camera (MSC) using a radiative transfer model of MODTRAN and examined its results. To simulate four seasonal conditions in the model calculation, we used model atmospheres of mid-latitude winter and summer for calculations of January 15 and July 15, and US standard for April 15 and October 15, respectively. Orbital parameters of KOMPSAT-2 and the seasonal solar zenith angles were taken into account. We assumed that the meteorological range is the tropospheric aerosol extinction of 50 km and surface albedo is the global average of clear-sky albedo of 0.135. MSC contract values are found to be considerably greater in the MSC spectral range than the total radiances calculated with the above general conditions. It is also shown that the spectral behavior of model results with the constant surface albedo differs from the pattern of MSC contract values. From these results, it can be inferred that the forthcoming MSC images would be somewhat dark.

  • https://doi.org/10.7780/kjrs.2001.17.3.211 인용 PDF

The Aircraft-level Simulation Environment for Functional Verification of the Air Data Computer (대기자료 컴퓨터 (Air Data Computer) 기능검증을 위한 항공기 수준의 시뮬레이션 환경)

  • Lee, Dong-Woo;Lee, Jae-Yong;Na, Jong-Whoa
    • Journal of Advanced Navigation Technology
    • /
    • v.22 no.2
    • /
    • pp.133-140
    • /
    • 2018

  • In recent years, model-based design techniques have been used as a way to support cost reduction and safety certification in the development of avionics systems. In order to support performance analysis and safety analysis of aircraft and avionics equipment (item) using model based design, we developed a multi-domain simulation environment that inter-works with heterogeneous simulators. We present a multi-domain simulation environment that can verify air data computers and integrated multi-function probes at the aircraft level. The model was developed by Simulink and the flight simulator X-Plane 10 was used to verify the model at the aircraft level. Avionics model functions were tested at the aircraft level and the air data errors of the model and flight simulator were measured within 0.1%.

  • https://doi.org/10.12673/jant.2018.22.2.133 인용 PDF KSCI