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This report describes millimeter wave ground based radar cross section measurements taken to support the SWOE JT&E program over two years. RCS measurements were made on selected ground clutter patches for one month and over another 43-day period at Camp Grayling, MI; and for 47 days at Yuma Proving Ground, AZ. Instruments collected data on meteorological conditions, solar flux, and soil moisture content. A wide range of atmospheric conditions was observed in Grayling over the measurement periods. The conditions in Yuma over the measurement period were relatively stable. In this report, we describe the variations in the ground based measured RCS of different clutter types over time and space for environmental conditions encountered during the three field tests. We have developed and will present an empirical model to describe these variations for the Yuma and Grayling II environments.

The overall goal of the program was to conduct experimental measurements and develop theoretical models to improve our understanding of electromagnetic wave interaction with terrain at millimeter wavelengths. The work was divided into five tasks. Tasks 1 involved the construction of calibrated scatterometer systems at 35, 94, and 140 GHz. In designing, constructing, and testing these systems, a great deal was learnt about system- design trade-offs and system stability requirements, and new calibration techniques were developed. The scatterometer systems were then used in support of the remaining tasks. The objective of Task 2 was to evaluate the effects of signal fading on the radar backscatter from terrain. Based on experiments conducted from asphalt and snow-covered surfaces, it was determined that the Rayleigh fading model is applicable at millimeter wavelengths, and a model was developed to show how frequency averaging can be used to reduce signal fading fluctuations. Task 3 involved the development of a model that relates the transmission loss of dry snow to crystal size in the 18-90 GHz region. In Task 4, we examined the character of bistatic scattering from surfaces of various surface roughness and from two types of trees. The bistatic data for trees proved instrumental in the development of a radar model for scattering from tree foliage at millimeter wavelengths, which was one component of Task 5. The other component of Task 5 involved the development of a model for snow. (aw)

The overall goal of the program was to conduct experimental measurements and develop theoretical models to improve our understanding of electromagnetic wave interaction with terrain at millimeter wavelengths. The work was divided into five tasks. Tasks 1 involved the construction of calibrated scatterometer systems at 35, 94, and 140 GHz. In designing, constructing, and testing these systems, a great deal was learnt about system- design trade-offs and system stability requirements, and new calibration techniques were developed. The scatterometer systems were then used in support of the remaining tasks. The objective of Task 2 was to evaluate the effects of signal fading on the radar backscatter from terrain. Based on experiments conducted from asphalt and snow-covered surfaces, it was determined that the Rayleigh fading model is applicable at millimeter wavelengths, and a model was developed to show how frequency averaging can be used to reduce signal fading fluctuations. Task 3 involved the development of a model that relates the transmission loss of dry snow to crystal size in the 18-90 GHz region. In Task 4, we examined the character of bistatic scattering from surfaces of various surface roughness and from two types of trees. The bistatic data for trees proved instrumental in the development of a radar model for scattering from tree foliage at millimeter wavelengths, which was one component of Task 5. The other component of Task 5 involved the development of a model for snow. (aw)

1Officer 666

By Barton Wood Currie and Augustin McHugh

Bored with his life as a wealthy businessman's only son, Travers Gladwin learns of a plot by a renowned art burglar to rob his house, so rather than thwart the planned burglary, he borrows a police uniform from a friend and decides to confront the robber by posing as an officer. When the burglar arrives at the house, he tries to pass himself off as Travers Gladwin. From there, things only get more complicated, including the arrival of the burglar's girlfriend who believes that her beau is the wealthy man's son. Comical and timely, the book was made into a movie multiple times, each hugely successful. (Summary by Roger Melin)

This is a book of sonnets by George G. Currie. Currie was a Canadian-born lawyer and business man, but also an accomplished author and poet. While he traveled the United States and Europe extensively throughout his life, he settled in Florida. Both the theme of traveling as well as Florida occur frequently in his poetry. - Summary by Carolin

This is a collection of love songs by Canadian-born Floridian Poet Laureate George Graham Currie. As poetry is the key to the hearts of many people, all listeners are well-advised to pay special attention to these collected poems. - Summary by Carolin