ArcSAR for detecting target elevation

2016 ◽  
Vol 52 (18) ◽  
pp. 1559-1561 ◽  
Author(s):  
M. Pieraccini ◽  
L. Miccinesi
Keyword(s):  
Target Elevation

scholarly journals Sensory gaze stabilization in echolocating bats

2019 ◽  
Vol 286 (1913) ◽  
pp. 20191496 ◽  
Author(s):  
O. Eitan ◽  
G. Kosa ◽  
Y. Yovel
Keyword(s):  
The Body ◽  
Fruit Bats ◽  
Complete Darkness ◽  
Gaze Stabilization ◽  
Spatial Estimation ◽  
Rapid Changes ◽  
The World ◽  
Wrong Direction ◽  
Moving Platform ◽  
Target Elevation

Sensing from a moving platform is challenging for both man-made machines and animals. Animals' heads jitter during movement, so if the sensors they carry are not stabilized, any spatial estimation might be biased. Flying animals, like bats, seriously suffer from this problem because flapping flight induces rapid changes in acceleration which moves the body up and down. For echolocating bats, the problem is crucial. Because they emit a sound to sense the world, an unstable head means sound energy pointed in the wrong direction. It is unknown how bats mitigate this problem. By tracking the head and body of flying fruit bats, we show that they stabilize their heads, accurately maintaining a fixed acoustic-gaze relative to a target. Bats can solve the stabilization task even in complete darkness using only echo-based information. Moreover, the bats point their echolocation beam below the target and not towards it, a strategy that should result in better estimations of target elevation.

scholarly journals The role of target elevation in prey selection by tiger beetles (Carabidae: Cicindela spp.)

2006 ◽  
Vol 209 (21) ◽  
pp. 4295-4303 ◽  
Author(s):  
J. E. Layne ◽  
P. W. Chen ◽  
C. Gilbert
Keyword(s):  
Prey Selection ◽  
Tiger Beetles ◽  
Target Elevation

scholarly journals Effects of optical pitch on oculomotor control and the perception of target elevation

1995 ◽  
Vol 57 (4) ◽  
pp. 433-440 ◽  
Author(s):  
Malcolm M. Cohen ◽  
Sheldon M. Ebenholtz ◽  
Barry J. Linder
Keyword(s):  
Oculomotor Control ◽  
Target Elevation ◽  
Optical Pitch

scholarly journals Effect of low gravitational stimulation on the perception of target elevation: Role of spatial expertise

2005 ◽  
Vol 67 (6) ◽  
pp. 1044-1051 ◽  
Author(s):  
Jérôme Carriot ◽  
Corinne Charles ◽  
Anne-Fabienne Huffenus ◽  
Vincent Nougier ◽  
Christian Raphel ◽  
...  
Keyword(s):  
Target Elevation

MIMO-FM: A Solution to Estimate Target Elevation with Passive FM Radar

2018 ◽  
Author(s):  
Dominique Poullin ◽  
Olivier Rabaste ◽  
Marc Lesturgie ◽  
Michel Menelle ◽  
Sylvain Azarian
Keyword(s):  
Target Elevation
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