scholarly journals Experimental Flight Testing of Night Vision Imaging Systems in Military Fighter Aircraft

2013 ◽  
Vol 42 (1) ◽  
pp. 20120339 ◽  
Author(s):  
Roberto Sabatini ◽  
Mark A. Richardson ◽  
Maurizio Cantiello ◽  
Mario Toscano ◽  
Pietro Fiorini ◽  
...  
Keyword(s):  
Night Vision ◽  
Imaging Systems ◽  
Flight Testing ◽  
Fighter Aircraft

scholarly journals Night vision imaging systems design, integration, and verification in military fighter aircraft

2012 ◽  
Author(s):  
Roberto Sabatini ◽  
Mark A. Richardson ◽  
Maurizio Cantiello ◽  
Mario Toscano ◽  
Pietro Fiorini ◽  
...  
Keyword(s):  
Systems Design ◽  
Night Vision ◽  
Imaging Systems ◽  
Fighter Aircraft ◽  
Design Integration

Aero Engine Performance Evaluation During Missile Firing Test

2017 ◽  
Author(s):  
Sajath Kumar Manoharan ◽  
Kasram Santhosh ◽  
Mahesh P. Padwale ◽  
G. P. Ravishankar
Keyword(s):  
Performance Evaluation ◽  
Engine Performance ◽  
Flight Testing ◽  
Flow Disturbance ◽  
Fighter Aircraft ◽  
Firing Test ◽  
Aero Engine ◽  
Temperature Ramps ◽  
Air Intake ◽  
Model Engine

Evaluation of engine performance during armament firing in fighter aircraft is a vital qualification aspect for airframe engine integration. Ingestion of missile’s efflux into air intake results in rapid increase of engine inlet temperatures (temperature ramps) which cause flow disturbance to the compressor. Temperature distortion caused due to armament firing and its effect on compressor stability during flight testing is evaluated. Accordingly mitigation actions are recommended for stall/surge free operations. Distortion descriptors are assessed using simulation model (engine performance program) and results compared with engine distortion limits.

scholarly journals Development and Flight Testing of an Automatic Leveling Function for a Fighter Aircraft

2018 ◽  
Vol 51 (1) ◽  
pp. 359-364
Author(s):  
Abhilash P. M ◽  
Niranjan K. Sura ◽  
Vijay V. Patel ◽  
Girish S. Deodhare
Keyword(s):  
Flight Testing ◽  
Fighter Aircraft

A novel approach to night vision imaging systems development, integration and verification in military aircraft

2013 ◽  
Vol 31 (1) ◽  
pp. 10-23 ◽  
Author(s):  
Roberto Sabatini ◽  
Mark A. Richardson ◽  
Maurizio Cantiello ◽  
Mario Toscano ◽  
Pietro Fiorini
Keyword(s):  
Systems Development ◽  
Night Vision ◽  
Imaging Systems ◽  
Military Aircraft ◽  
Novel Approach

scholarly journals Developing Quantum Dot Phosphor-Based Light-Emitting Diodes for Aviation Lighting Applications

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Fengbing Wu ◽  
Dawei Zhang ◽  
Shuzhen Shang ◽  
Yiming Zhu ◽  
Songlin Zhuang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Night Vision ◽  
Imaging Systems ◽  
Light Sources ◽  
Semiconductor Nanocrystal ◽  
Light Emitting ◽  
Wavelength Tunability ◽  
Spectral Control ◽  
Compositional Changes

We have investigated the feasibility of employing quantum dot (QD) phosphor-based light-emitting diodes (LEDs) in aviation applications that request Night Vision Imaging Systems (NVIS) compliance. Our studies suggest that the emerging QD phosphor-based LED technology could potentially be superior to conventional aviation lighting technology by virtue of the marriage of tight spectral control and broad wavelength tunability. This largely arises from the fact that the optical properties of semiconductor nanocrystal QDs can be tailored by varying the nanocrystal size without any compositional changes. It is envisioned that the QD phosphor-based LEDs hold great potentials in cockpit illumination, back light sources of monitor screens, as well as the LED indicator lights of aviation panels.

scholarly journals Unveiling modal parameters with forced response using SVD and QR during flutter flight testing

2016 ◽  
Vol 232 (1) ◽  
pp. 68-76
Author(s):  
José Barros-Rodríguez ◽  
José Miguel Fernández Fructuoso ◽  
Roberto Flores Le Roux ◽  
Sebastián Sánchez Prieto ◽  
Oscar Rodríguez Polo
Keyword(s):  
Noise Immunity ◽  
Structural Response ◽  
Forced Response ◽  
Modal Parameters ◽  
Response Signal ◽  
Flight Testing ◽  
Fighter Aircraft ◽  
Response Acquisition ◽  
Analytic Signals ◽  
Forced Excitation

This article presents an algorithm for the identification of modal parameters during flutter flight testing when forced excitation is employed and the aircraft possesses several sensors for structural response acquisition. The main novelty of the method, when compared with other classical modal analysis methods, is that the analysis is carried out in intervals of time instead of in the whole duration of the excitation. It means that, even when the response signal is only partially available, some modal parameters may be still identified. Application to analytic signals as well as structural response of modern fighter aircraft using frequency-swept excitation is provided in order to demonstrate the effectiveness, robustness and noise immunity of the proposed method.

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