Technology Experiment: Millimeter Wave (MMW) Radar
MMW radar is a preferred imaging sensor modality because it provides precise
range measurements for the environmental imaging needed to perform autonomous
operations in dusty, foggy, falling snow occluded (white out, blizzard)
and poorly lit environments. Back scatter test will measure the energy
reflected in a direction opposite to the incident wave. This test will
explore the energy returned at different grazing angles and on different
surface types (blue ice, flat ice and snow). These results will be compared
to the performance on a similar geometry of regular dirt. This data will
help to build a database of performance of MMW imaging radar on different
terrain.
Atmospheric penetration test will measure the degradation of performance
of the sensor under severe visibility conditions. The same scene will be
sensed under clear air conditions and also under heavy flying snow (white-out,
blizzard). Visual conditions will be recorded by photography of the scene.
A laser scanner will scan the same image for comparison purposes. A quantitative
estimation of performance in severe polar conditions will support the application
of this sensing modality.
Back to Expedition
Objectives
|
Robotic Search for Antarctic Meteorites 1998
All material on this page is property of NASA and Carnegie Mellon
University. Any image or text
taken from this site and incorporated into another document without
consent violates the Copyright
Law of the United States and the Berne International Copyright
Agreement.
Send comments, questions, or suggestions to Dimitrios
Apostolopoulos.
This document prepared by Michael
Wagner.
|
 |