RESULTS OF THE SECOND FLIGHT TEST OF THE LORAN-C RECEIVER/DATA COLLECTION SYSTEM

The components of the Loran-C navigation system which were developed thus far are a phase-locked-loop receiver and a microcomputer development system. The microcomputer is being used as a means of testing and implementing software to handle sensor control and navigation calculations. Currently, the microcomputer is being used to collect and record data from the receiver in addition to development work. With these components, it was possible to record receiver data over a period of time and then reduce this data to obtain statistical information. It was particularly interesting to load the equipment developed in the laboratory into an aircraft and collect data while in flight. For initial flight tests, some important considerations were how well the entire system will perform in the field, signal strength levels while on the ground and in the air, the amount of noise present, changing of signal-to-noise ratio for various aircraft configurations and maneuvers, receiver overloading due to other equipment and antennas, and the overall usefulness of Loran-C as a navigation aid.

• Corporate Authors:

  Ohio University, Athens

  Avionics Engineering Center
  Athens, OH  United States  45701
• Authors:
  • Fischer, J P
• Publication Date: 1979-3

Media Info

• Pagination: 9 p.

Subject/Index Terms

• TRT Terms: Data collection; Flight tests; Loops (Control systems); Loran C; Microcomputers; Microprocessors; Navigation systems; Navigational aids; Radio receivers; Signal to noise ratio
• Old TRIS Terms: Loran-c navigation system; Low costs; Phase locked systems
• Subject Areas: Aviation; Vehicles and Equipment;

Filing Info

• Accession Number: 00197950
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NASA-CR-158381, TM-68
• Contract Numbers: NGR-36-009-017
• Files: TRIS
• Created Date: Sep 15 1980 12:00AM