Accession Number:

AD0626089

Title:

AUTOMATIC TRACKING WITH SEQUENTIAL LOBING.

Descriptive Note:

Technical memo.,

Corporate Author:

ELECTRONIC DEFENSE LABS SYLVANIA ELECTRONIC SYSTEMS-WEST MOUNTAIN VIEW CALIF

Personal Author(s):

• Rogers,Roy L.

Report Date:

1965-08-16

Pagination or Media Count:

51.0

Abstract:

This report analyzes the problem of automatic tracking with a passive RF system by sequential lobing of antenna beams. The analysis is general enough to be applied to optical, infrared, and sonar passive tracking systems. Among the problems considered are a processing of tracking-error waveforms, b demodulations techniques, c antenna-beam gradient and resolution, d pulse detection, e the lobing rate, and f receiver AGC requirements. The conclusion drawn is that the sequential-lobing system, compared to the conical-scan system, is as accurate, has the advantage of a variable lobing rate, and can change antenna beams electronically, but its signal-processing circuitry is more complex. Results of the analysis were applied to the development of wideband 50 to 500 Mc and 1 to 11 Gc sequential-lobing tracking systems. Author

Descriptors:

• *TRACKING
• ANTENNA LOBES
• AUTOMATIC
• BROADBAND
• DIRECTION FINDING
• SCANNING
• ERRORS
• DEMODULATION
• ANTENNA ARRAYS
• HORN ANTENNAS
• DEMODULATORS
• PHASE(ELECTRONICS)

Subject Categories:

• Direction Finding
• Optical Detection and Detectors
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE