Investigation of AFCRL Tri-Coordinate Radar Technique

摘要

An experimental Tri-Coordinate Radar System, based on a special antenna developed at the Air Force Cambridge Research Laboratory, has been assembled at AFCRL's Antenna Test Station. This report begins with an explanation of how the antenna converts elevation angle of arrival to an electrical phase difference, followed by a block diagram description of the complete radar. Then each of the units which make up the receiving system is individually discussed. The phase-stable limiting amplifiers, developed specifically for this application, receive particular attention. Next, a detailed block diagram explanation of the indicating system is given, followed by descriptions of the indicator circuits. In each case, complete schematic diagrams are given, accompanied by sufficient information to permit operation and maintenance of the equipment. Preliminary testing of the system with an aircraft target has shown the feasibility of the concept, but has also shown the need for additional study. The report concludes with recommendations for further experimental and theoretical investigation. (Author)