Tracking a target in the Advanced Airborne Interceptor Simulator with a second-order filter using TSPI from the RAJPO GPS data link

Joseph H. Nguyen; William D. Holley; Harold F. Casey Jr.

doi:10.1117/12.317506

30 July 1998 Tracking a target in the Advanced Airborne Interceptor Simulator with a second-order filter using TSPI from the RAJPO GPS data link

Joseph H. Nguyen, William D. Holley, Harold F. Casey Jr.

Author Affiliations +

Proceedings Volume 3365, Acquisition, Tracking, and Pointing XII; (1998) https://doi.org/10.1117/12.317506
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

The Advanced Airborne Interceptor Simulator (AAIS) is a pod- mounted system that simulates RF emission of an airborne tracking radar. The simulator does not contain a receiver. It is a 'smart' emitter which uses the time, space and position information (TSPI) received form a target carrying a RAJPO GPS datalink pod. The TSPI essentially replaces outputs typically seen in a radar receiver, namely angle, range and range rate of a target. Since the update rate of this information is dictated by the slow transmission rate of the RAJPO datalink, the signal must be extrapolated and filtered at a much faster rate, close to that of the simulated airborne interceptor. This is necessary to accurately track and faithfully emit radar signals to maintain track on an airborne target. The received TSPI rate is 10 Hz. A second order (alpha) -(beta) filter is chosen to optimize the tracking performance of the AAIS. This paper discusses various rates of the filter, the need for extrapolation and the optimal values of the (alpha) and (beta) factors for this airborne application.

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Joseph H. Nguyen, William D. Holley, and Harold F. Casey Jr. "Tracking a target in the Advanced Airborne Interceptor Simulator with a second-order filter using TSPI from the RAJPO GPS data link", Proc. SPIE 3365, Acquisition, Tracking, and Pointing XII, (30 July 1998); https://doi.org/10.1117/12.317506

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KEYWORDS

Radar

Electronic filtering

Global Positioning System

Receivers

Antennas

Computer simulations

Fourier transforms

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