Investigation and experiment of radar systems in unmanned aerial vehicles
In recent times, there is a growing interest in radars used by Unmanned Aerial Vehicles (UAV). These radars in UAVs are used for a variety purposes such as surveillance & reconnaissance, interferometry, foliage penetration, environmental monitoring, moving target indication, etc. However, the...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/67777 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | In recent times, there is a growing interest in radars used by Unmanned Aerial Vehicles
(UAV). These radars in UAVs are used for a variety purposes such as surveillance &
reconnaissance, interferometry, foliage penetration, environmental monitoring, moving
target indication, etc. However, the two most common usages are to measure distance and
generate a Synthetic Aperture Radar (SAR) image. Thus this report begins by discussing
the fundamentals of a radar, in particular a Frequency Modulated Continuous Wave
(FMCW) radar system and how a synthetic aperture can be generated with a small antenna
thereby creating a 2-Dimensional image with a resolution comparable with one generated
by a large antenna. Next, it highlights some of the important modules in a FMCW radar
system and steps taken to improve the accuracy of the system. Finally, the report concludes
by deliberating factors that affected the range calculation in both a controlled and
uncontrolled environment. |
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