Analysis Of The Infrared Emission Due To Aerodynamic Heating Of Missile Domes

Tofani, A.

doi:10.1117/12.960792

Cited by 4 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sardinia. In Italy, the National Institute of Astrophysics (INAF; Istituto Nazionale di Astrofisica) is constructing the Sardinia Radio Telescope (SRT), a fully-steerable dish that will be 64 m in diameter (Tofani et al 2008). Most useful for pulsar research will be its planned dual-receiver system that will be capable of performing simultaneous observations at P-band (305-425 MHz) and L-band (1.3-1.8 GHz).…”

Section: Westerbork Synthesis Radio Telescope (Wsrt)mentioning

confidence: 99%

The European Pulsar Timing Array: current efforts and a LEAP toward the future

Ferdman

Haasteren

Bassa

et al. 2010

Class. Quantum Grav.

133

132

View full text Add to dashboard Cite

The European Pulsar Timing Array (EPTA) is a multi-institutional, multi-telescope collaboration, with the goal of using high-precision pulsar timing to directly detect gravitational waves. In this article we discuss the EPTA member telescopes, current achieved timing precision, and near-future goals. We report a preliminary upper limit to the amplitude of a gravitational wave background. We also discuss the Large European Array for Pulsars, in which the five major European telescopes involved in pulsar timing will be combined to provide a coherent array that will give similar sensitivity to the Arecibo radio telescope, and larger sky coverage.PACS numbers: 97.60. Gb, 04.80.Nn, 95.55.Jz, 95.85.Sz

show abstract

Section: Westerbork Synthesis Radio Telescope (Wsrt)mentioning

confidence: 99%

The European Pulsar Timing Array: current efforts and a LEAP toward the future

Ferdman

Haasteren

Bassa

et al. 2010

Class. Quantum Grav.

133

132

View full text Add to dashboard Cite

show abstract

“…The thermal noise is closely approximated as being white gaussian distributed. Although we perform the computer simulation of the corresponding temperature distributions produced by aerodynamic, solar heating, sky radiance, and radiative cooling 6,7 , there are many uncertainty in range estimation problem such as temperature, atmospheric transmittance, emissivity. In second case, we assume emissivity noise.…”

Section: Maximum Likelihood Estimation Problemsmentioning

confidence: 99%

“…To obtain the infrared emission from target noses, the computer simulation of the corresponding temperature distributions produced by aerodynamic, solar heating, sky radiance, and radiative cooling is performed 6,7 . MODTRAN is basically developed to model atmospheric propagation of electromagnetic radiation for wavelengths extending from the thermal infrared through the visible and into the ultraviolet.…”

Section: Introductionmentioning

confidence: 99%

Radiance and atmosphere propagation-based method for the target range estimation

Cho

Chun

2012

Thermosense: Thermal Infrared Applications XXXIV

View full text Add to dashboard Cite

Target range estimation is traditionally based on radar and active sonar systems in modern combat system. However, the performance of such active sensor devices is degraded tremendously by jamming signal from the enemy. This paper proposes a simple range estimation method between the target and the sensor. Passive IR sensors measures infrared (IR) light radiance radiating from objects in different wavelength and this method shows robustness against electromagnetic jamming. The measured target radiance of each wavelength at the IR sensor depends on the emissive properties of target material and is attenuated by various factors, in particular the distance between the sensor and the target and atmosphere environment. MODTRAN is a tool that models atmospheric propagation of electromagnetic radiation. Based on the result from MODTRAN and measured radiance, the target range is estimated. To statistically analyze the performance of proposed method, we use maximum likelihood estimation (MLE) and evaluate the Cramer-Rao Lower Bound (CRLB) via the probability density function of measured radiance. And we also compare CRLB and the variance of and ML estimation using Monte-Carlo.

show abstract