Accession Number:

ADA191650

Title:

Automated Test Device for FASR (Fixed Array Surveillance Radar) Beam Steering Componentry.

Descriptive Note:

Interim rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Scott, Russell A.

Report Date:

1988-02-10

Pagination or Media Count:

14.0

Abstract:

The Fixed Array Surveillance Radar System uses an automated test device known as the Axis Box Tester. An axis box serves as a distribution point connecting the horizontal and vertical busses of the array and monitors the rf of phase shifters and aids with beam steering. The tester diagnoses axis boxes and verifies proper operation. All digital circuitry is tested, including all data flow paths to and from the phase shifters, all control line information, and all circuitry to select rows and columns. The tester attempts to provide information that will aid, if not solve problems. The software is parsed into modules that perform various tests upon the axis box. The hardware, which uses a single-board computer with an Intel 8086 microprocessor, provides the interface between the microprocessor and the axis box. the tester provides very accurate diagnostics and can reduce debugging time by a factor of 100. Some problems prevent the tester from doing more than guessing at possible causes of a problem. Keywords Phased arrays.

Descriptors:

• *PHASE SHIFT CIRCUITS
• *PHASED ARRAYS
• *SEARCH RADAR
• ARRAYS
• AUTOMATION
• BEAM STEERING
• BOXES
• CIRCUITS
• COMPUTER PROGRAMS
• CONTROL
• DATA PROCESSING
• DATA TRANSMISSION SYSTEMS
• DEBUGGING(COMPUTERS)
• DIGITAL SYSTEMS
• DISTRIBUTION
• FLOW
• MICROPROCESSORS
• MONITORS
• PATHS
• RADIOFREQUENCY
• TEST EQUIPMENT
• TIME

Subject Categories:

• Active and Passive Radar Detection and Equipment
• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE