Synopsis
The original campus of the University of Michigan was nearly a perfect square about a half-mile along a side. A street-sized walk, appropriately called the Diag, runs diagonally across this square, connecting its southeast and northwest corners. In 1904 a new engineering building was either started or finished (I do not remember which) to house classrooms. When another engineering building was built on the expanded campus across the street from it many years later, the old building came to be known as West Engine, to distinguish it from the new East Engine. Old West Engine is (or maybe by now, was) a four-story, L-shaped structure that stood at the southeast corner of the original campus. It was built with an arch in it to straddle the Diag at the apex of the L. You walked over the Engineering Arch to get from one leg of the L to the other if you were inside the building, and you walked under it when you entered the campus from the southeast corner. Affixed to the masonry wall of the arch was a plaque I often noted in passing. It bore a quote attributed to Horace Greeley (1811-1872), who I did not know at the time was the founder, editor, and publisher of the New York Tribune. It said, simply, Young man, when theory and practice differ, use your horse sense. The suggestion seems worthy of an exclamation point instead of a period, but I do not remember if it had one.
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From the Back Cover
Discussions include:
Target support fixtures a plastic foam columns, string supports, metal pylons; unusual methods are also discusses, including one involving no support at all.
Calibration a Instrumentation calibration, RCS calibration, primary and secondary standards, calibration by substitution.
Outdoor test ranges a Real estate needed, antenna selection, ground-plane optimization, berms, radar fences.
Scale-model testing a scaling laws, dielectrics and absorbers, metallic coatings, resistive sheets
The electromagnetic principles governing accurate RCS measurements are explained in easy-to-read style. The explanations are supported by simple analyses and augmented by measured and computed illustrations.
Synopsis
This guide explains how the radar cross section of objects is typically measured on test ranges, and how testing may be tailored to meet specific requirements. The volume provides basic and advanced information on instrumentation systems, test range design, and measurement technology. Individual chapters describe the design and operation of outdoor
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