Title :
Evaluation of a “Stereo” Radar approach for terrain reconstruction using synthetic data
Author :
Schmerwitz, Sven ; Peinecke, Niklas ; Döhler, Hans-Ullrich ; Korn, Bernd
Author_Institution :
Inst. of Flight Guidance, German Aerosp. Center, Braunschweig
Abstract :
Enhanced vision systems (EVS) are a possibility to improve the situation awareness of an aircrew during poor visibility conditions. EVS are based on sensor data which might be difficult to interpret especially for radar data. Fast scanning radar systems in the millimeter waveband (35 or 94 GHz) are commonly unable to measure the elevation of a target. Nevertheless these elevation data can sometimes be reconstructed from a series of images or from images taken from different viewpoints or bank angles. In case of forward looking millimeter wave radar it is more promising to use different bank angles. The authors have detailed these ideas using the term ldquoStereo Radarrdquo in previous publications. In this paper we take a closer look at the accuracy and the resolution of the algorithm. For this a series of experiments using synthetic data is performed. Furthermore we show the influence of size, elevation, shape, and different (radar) textures of a target on the reconstructed elevation. Finally some tests are carried out to demonstrate the robustness against different kinds of noise.
Keywords :
image reconstruction; radar imaging; stereo image processing; synthetic aperture radar; enhanced vision systems; millimeter wave radar; radar data; scanning radar systems; sensor data; stereo radar; synthetic data; terrain reconstruction; Image reconstruction; Machine vision; Millimeter wave measurements; Millimeter wave radar; Noise robustness; Noise shaping; Radar imaging; Radar measurements; Shape; Testing;
Conference_Titel :
Digital Avionics Systems Conference, 2008. DASC 2008. IEEE/AIAA 27th
Conference_Location :
St. Paul, MN
Print_ISBN :
978-1-4244-2207-4
Electronic_ISBN :
978-1-4244-2208-1
DOI :
10.1109/DASC.2008.4702837