Accession Number:

AD0760551

Title:

Error Reduction in a Two-Gimbal, Airborne, Angle Track System.

Descriptive Note:

Masters thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

• Wright,George L.

Report Date:

1973-03-01

Pagination or Media Count:

77.0

Abstract:

Angle measurement in a two-gimbal, airborne, tracking system is complicated by the motion of the aircraft. The two-gimbal system is characterized by the azimuth and elevation channel control systems. Rolling motions introduce error-causing disturbance inputs into each channel. One method of reducing the error investigated in this report is a linear transformation method which treats both channels simultaneously by considering a cross-coupled multivariable system. Another method, the invariance method, utilizes a feed forward branch whose input is the unwanted disturbance to reduce the error due to aircraft roll rate for each channel separately. Modified author abstract

Descriptors:

• (*SEARCH RADAR
• RELIABILITY(ELECTRONICS))
• (*GIMBALS
• ERRORS)
• AIRCRAFT EQUIPMENT
• RADAR TRACKING
• ROLL
• PITCH(MOTION)
• YAW
• AZIMUTH
• MATHEMATICAL MODELS
• THESES

Subject Categories:

• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE