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Full-Text Articles in Engineering
Post-Processing Resolution Enhancement Of Open Skies Photographic Imagery, Daniel E. Sperl
Post-Processing Resolution Enhancement Of Open Skies Photographic Imagery, Daniel E. Sperl
Theses and Dissertations
The Treaty on Opens Skies allows any signatory nation to fly a specifically equipped reconnaissance aircraft anywhere over the territory of any other signatory nation. For photographic images, this treaty allows for a maximum ground resolution of 30 cm. The National Air Intelligence Center (NAIC), which manages implementation of the Open Skies Treaty for the US Air Force, wants to determine if post-processing of the photographic images can improve spatial resolution beyond 30 cm, and if so, determine the improvement achievable. Results presented in this thesis show that standard linear filters (edge and sharpening) do not improve resolution significantly and …
Effects Of Jamming On Radars, Ahmet Okuyucu
Effects Of Jamming On Radars, Ahmet Okuyucu
Theses and Dissertations
Although jamming of radars has been in vogue for nearly 50 years there appears to be no comprehensive report on the subject matter. The purpose of this research is to fill this gap. The methodology consisted of analysis, simulation, and where feasible experimental demonstrations. Experimental equipment consisted of a digital noise generator whose output was used to modulate a high frequency carrier in various fashions. The modulated output was fed into a very sensitive super-heterodyne receiver whose Intermediate frequency (IF) bandwidth could be varied from tens of Hz to mega Hz range. The detected output was displayed on a sampling …