Tip Clearance Measurement Technique for Stationary Gas Turbines Using an Autofocusing Millimeter-Wave Synthetic Aperture Radar

2012 ◽  
Vol 61 (6) ◽  
pp. 1778-1785 ◽  
Author(s):  
Andreas Schicht ◽  
Stefan Schwarzer ◽  
Lorenz-Peter Schmidt
Keyword(s):  
Synthetic Aperture Radar ◽  
Millimeter Wave ◽  
Measurement Technique ◽  
Gas Turbines ◽  
Tip Clearance ◽  
Synthetic Aperture ◽  
Aperture Radar

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.

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