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New Developments in Radar and Radio Sensors for Aircraft Navigation

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1 Author(s)
Fried, Walter R. ; Rockwell International Anaheim, Calif. 92803

Recent developments in airborne Doppler and ground mapping navigation radars and ground and satellite based radio systems are described. Simultaneous lobing and slope tracking techniques can remove the well-known Doppler sea bias error in fast and slowly moving vehicles. Doppler velocity information can be extracted from coherent forward-looking mapping radars, and high position fixing accuracy can be achieved by synthetic aperture radars. In radio navigation systems, such as Loran, Omega, and satellite systems, direct-ranging and differential techniques greatly reduce the geometric dilution and propagation effects which have plagued conventional radio navigation systems. The advantages gained by mixing of the data from these and other navigation sensors in a digital multisensor system are discussed and approaches for processing these data are suggested.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:AES-10 ,  Issue: 1 )