THE AN/ASN-128B: AN INTEGRATED DOPPLER/GPS NAVIGATION SYSTEM FOR HELICOPTERS

Heinz Buell and Leonid Oleinik

Peer Reviewed

Abstract:	The successful deployment of GPS has introduced a new and powerful tool that enables the development of a variety of integrated navigation systems. One such system integrates GPS with a Doppler radar navigation set, resulting in a system that combines the best features of each of the two sensors. The advantages of a combined system include the availability of accurate navigation even when one of the two sets of sensor data is not available, continuous updating of Doppler present position with the highly accurate GPS data, and use of Doppler velocity data to aid the GPS receiver for improved tracking in high dynamics and in a jamming environment. This paper presents a description of the ANIASN- 128B; test methods employed by the Army to verify its performance; and the growth of the ANIASN-128B, including the use of a newer GPS card that meets the GPS Receiver Application Module (GRAM) requirements.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 45, Number 3
Pages:	173 - 182
Cite this article:	Buell, Heinz, Oleinik, Leonid, "THE AN/ASN-128B: AN INTEGRATED DOPPLER/GPS NAVIGATION SYSTEM FOR HELICOPTERS", NAVIGATION: Journal of The Institute of Navigation, Vol. 45, No. 3, Fall 1998, pp. 173-182.
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