Infrared and Millimeter Wave Radar Sensor Models for Enhanced Vision System Simulation Studies

Kashyap, SK and Satish, K Vegula and Shantha Kumar, N (2013) Infrared and Millimeter Wave Radar Sensor Models for Enhanced Vision System Simulation Studies. Project Report. National Aerospace Laboratories, National Aerospace Laboratories.

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    Abstract

    Flight simulators capable of displaying infrared (IR) and millimeter wave radar (MMWR) images will be required for training flight crews in the use of enhanced vision system (EVS) before operational EVS find their way into cockpits. Such flight simulators require IR and MMWR sensor models to simulate the images of the scene seen by them. This report presents the physics based IR and MMWR sensor models to simulate the images. These models generates images by computing the energy levels detected by the sensors (in case of IR) and the power returned by the objects (in case of MMWR) based on various environmental factors like position of sun, ambient temperature, latitude, time of the day, weather conditions, objects material properties etc. Commercially available software package MODTRAN-5 has been used to compute atmospheric attenuation affecting IR sensor image for different weather condition like fog and rain. Using these concepts IR and MMWR image simulator have been developed in VC++ and interfaced with desktop Flightgear using UDP network protocol to generate IR and MMWR sensor images in real time. IR/MMWR images were simulated under winter as well as summer seasons, fog and rain conditions. The results are presented for different time-of-day, different runway visibility conditions due to fog and rain rate using simulated data. Validation with real data of IR images is under progress.

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: Sensor models, Sensor simulation, Infrared, Millimeter wave radar,Enhanced Vision System
    Subjects: AERONAUTICS > Avionics & Aircraft Instrumentation
    Division/Department: Flight Mechanics and Control Division, Flight Mechanics and Control Division, Flight Mechanics and Control Division
    Depositing User: Dr Sudesh Kumar Kashyap
    Date Deposited: 14 Nov 2013 09:54
    Last Modified: 14 Nov 2013 09:54
    URI: http://nal-ir.nal.res.in/id/eprint/11819

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