New Releases by Patrick Ryan

Describes significant moments in the history of the heavyweight boxing championship.

Interview with Michael Patrick Ryan, a Marine Corps veteran, concerning his experiences in the Pacific Theater during World War II. Ryan discusses his assignment to the 2nd Marine Division, landings on Gavutu and Tanambogo in the Florida Islands, Tarawa landing, the Marianas campaign, and the Tinian landing.

Team history, highlights, and important players are packed into this slim volume. Also use: New York Jets; Pittsburgh Steelers (both 1991).

This book tells of the history, players, ownership, records, outstanding games and future of the New York Giants of the National Football League.

This book tells of the history, players, ownership, records, outstanding games and future of the Los Angeles Raiders of the National Football League.

Desire to improve current airborne iceberg surveillance capability for ice management in support of offshore oil explo ration has raised interest in alternative radar systems. This experiment evaluated two generations of search radar, system designed for military purposes. Search radar designed to oper ate at low altitudes. Rotating antenna allows target to be detected ahead of aircraft so that plane can divert to view & confirm target.

A study has been undertaken to investigate the use of enhancement techniques to increase the radar detectability of icebergs. These techniques will permit more efficient use of iceberg management tools such as support vessels and aircraft. There are essentially two strategies to achieve enhancement available: namely, passive and active. Passive techniques refer to those which increase the icebergs effective echoing area or radar cross-section and include the deployment of reflective material on the iceberg surface as well as a number of reflector configurations based on balloon and kite systems. Active techniques include the use of radar transponders, radio direction finding equipment, radio navigation equipment and satellite tracking systems.

To thoroughly investigate the iceberg detection capability of shipborne marine radar, a field program was carried out aboard the MV POLAR CIRCLE in the northern area of the Grand Banks of Newfoundland area during April 1985. The data collected is able to provide information on icebergs in sea clutter, emphasizing small icebergs, and to demonstrate the advantages of signal processing to maximize detection capability. The data have been used to validate a radar model that can predict radar performance under a variety of operational and environmental conditions by modifying the input parameters.

Describes a comprehensive field program undertaken in 1984 to assess the iceberg detection capability of existing marine-type radars. The semi-submersible Sedco 706 drilling platform on the Grand Banks was selected for the trials. It has four radar systems on board, two X-band and two S-band, plus low-noise receivers for increased sensitivity. During the data collection phase, recordings of radar video signals were made for various icebergs, ships, and drilling rigs. Raw video signals from each radar were digitized sequentially and stored on tape for subsequent analysis. Data collected have proven useful in identifying the effect of critical environmental conditions such as ducting and subrefraction, as well as providing valuable information on sea clutter.