Zobrazeno 1 - 10
of 21
pro vyhledávání: '"James Stark Draper"'
Publikováno v:
SPIE Proceedings.
Monocular Passive Ranging (MPR) employs a single multicolor IR sensor to passively range to a boosting theater ballistic missile (TBM). Airborne active ranging sensor, such as radars and ladars, may attract anti-radiation missiles, and are forced to
Publikováno v:
SPIE Proceedings.
Single IR sensor passive ranging from an observer to a target embedded in the atmosphere exploits the effect of atmospheric attenuation of the signal. By judicious choice of wavebands the range and altitude to a target can be determined passively wit
Publikováno v:
SPIE Proceedings.
The use of Unmanned Air Vehicles (UAVs) with a wide range of capabilities and missions is starting toproliferate. Unmanned air vehicles offer a unique supplement to existing manned systems. Individual UAVs havealready contributed to successful missio
Autor:
James Stark Draper
Publikováno v:
AIAA Journal. 14:358-362
The luminous flames in the Apollo first stage exhaust flow are considered in terms of the requirements for stabilizing hydrocarbon flames in low pressure, high speed flowfields. Above 12-15 km alt, flame stabilization depends upon a series of recircu
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 23:323-326
Fluctuating molecular vibrational-rotational band emission from an unsteady temperature field is formulated in terms of the intensity of the temperature fluctuation and the temperature total sensitivity function of the spectral radiance of a thin, is
Autor:
James Stark Draper
Publikováno v:
AIAA Journal. 4:1597-1603
The nature of the infrared fluctuations radiated by the fluid-mechanical turbulence of hot shear layers has been investigated analytically and experimentally. The analysis assumes a gas mixture is a black body modified by the constituent gas emissivi
Publikováno v:
AIAA Journal. 13:825-827
Autor:
Jacques A. F. Hill, James Stark Draper
Publikováno v:
Journal of Spacecraft and Rockets. 3:1552-1554
Autor:
James Stark Draper, Kenneth J. Plotkin
Publikováno v:
AIAA Journal. 10:1707-1709
Publikováno v:
7th Aerospace Sciences Meeting.
An approximate analysis of radar backscattering from the underdense turbulent rocket exhaust plume at high altitudes is offered. The tail aspect radar backscatter spectral content is analyzed using an exhaust mean flow model that has been shown accur