Compact beam scanning 240GHz radar for navigation and collision avoidance
2011
Autonomous small robotic platforms require a suite of sensor to navigate and function in complex environment. Due to
limited space, onboard power, and processing capability these sensors must be low mass, compact size, low power, and
run with minimal processing resources. We are in the process of developing a compact and low-power imaging mm-wave
radar system for small autonomous robotic platforms operating at Y-band to allow for navigation and obstacle
detection in conditions that make the use of passive optical sensors difficult or impossible. The radar system is being
fabricated and assembled using silicon micromachining technique with the overall mass of 5 grams, peak power of 200
mW, and operational power of 6.7 mW for one frame per second update rate, field of view of ± 25°, angular resolution
of 2°, range resolution of 37.5cm, and range of 400m. The beam steering is accomplished by frequency scanning and the
range resolution is obtained from the standard FMCW technique utilizing a chirped signal waveform with step
discontinuities. This paper will present the overall architecture of this radar system in addition to the phenomenological
investigation of scattering from obstacle in indoor environment. It is also shown how radar images taken from indoor
scenes can be interpreted and utilized to create the interior layout of a building.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
11
Citations
NaN
KQI