scholarly journals Indoor Operations by FMCW Millimeter Wave SAR Onboard Small UAS: A Simulation Approach

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Antonio Fulvio Scannapieco ◽  
Alfredo Renga ◽  
Antonio Moccia
Keyword(s):  
Synthetic Aperture Radar ◽  
Millimeter Wave ◽  
Continuous Wave ◽  
Control Volume ◽  
Synthetic Aperture ◽  
Design Parameters ◽  
Unmanned Aerial Systems ◽  
Generation Task ◽  
Wave Radar ◽  
Aperture Radar

A dedicated system simulator is presented in this paper for indoor operations onboard small Unmanned Aerial Systems (UAS) by a novel millimeter wave radar sensor. The sensor relies on the principle of Synthetic Aperture Radar (SAR) applied to a Frequency Modulated Continuous Wave (FMCW) radar system. Input to the simulator are both design parameters for Synthetic Aperture Radar (SAR), which should be able to cope with the stringent requirements set by indoor operations, and information about platform navigation and observed scene. The scene generation task is described in detail. This is based on models for point target response on either a completely absorbing background or fluctuating background and ray tracing (RT) techniques. Results obtained from scene processing are finally discussed, giving further insights on expected results from high-resolution observation of an assigned control volume by this novel SAR sensor.

scholarly journals Experimental Results of High-Resolution ISAR Imaging of Ground-Moving Vehicles with a Stationary FMCW Radar

2013 ◽  
Vol 59 (3) ◽  
pp. 293-299 ◽  
Author(s):  
Janusz S. Kulpa ◽  
Mateusz Malanowski ◽  
Damian Gromek ◽  
Piotr Samczyńsk ◽  
Krzysztof Kulpa ◽  
...  
Keyword(s):  
Synthetic Aperture Radar ◽  
Continuous Wave ◽  
Experimental Results ◽  
Synthetic Aperture ◽  
Fmcw Radar ◽  
Straight Line ◽  
Moving Vehicles ◽  
Wave Radar ◽  
Sar Processing ◽  
Aperture Radar

Abstract In the paper experimental results of ISAR (Inverse Synthetic Aperture Radar) processing obtained with highresolution radar are presented. Targets under observation were ground moving vehicles, such as cars, trucks and tractors. The experiments were performed with a FMCW (Frequency- Modulated Continuous-Wave) radar operating at 94 GHz with almost 1 GHz of bandwidth. Due to the measurement scenario more typical for SAR (Synthetic Aperture Radar), than ISAR, i.e. targets moving along straight line crossing the antenna beam, algorithms usually applied for SAR processing have been used.

scholarly journals Design of an antenna array for a LFM-CW synthetic aperture radar prototype

DYNA ◽  
2020 ◽  
Vol 87 (212) ◽  
pp. 96-101
Author(s):  
Alfonso José Zozaya ◽  
Paulino Jesús Del Pino Pettinare
Keyword(s):  
Synthetic Aperture Radar ◽  
Antenna Arrays ◽  
Patch Antenna ◽  
Continuous Wave ◽  
Horizontal Resolution ◽  
Synthetic Aperture ◽  
Empirical Equations ◽  
Full Wave ◽  
Theoretical Design ◽  
Aperture Radar

This paper deals with the design of two identical 1 × 4 patch antenna arrays for a linear frequency modulated (LFM) continuous wave (CW) synthetic aperture radar (SAR) prototype. The theoretical design is carried out by using the empirical equations available in the literature, while the design optimization is performed by numerical methods using two commercial full wave simulators. Once the antennas are built they are experimentally characterized and incorporated into a radar prototype implemented at the Ecuadorian Space Institute. The radar is tested in a probing polygon and the horizontal resolution is estimated. A measured azimuthal resolution value very close to the theoretical one is achieved

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