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Self-calibrating SSR monopulse receiver

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2 Author(s)
Jacovitti, G. ; Infocom. Dept., Rome Univ., Italy ; Laurenti, A.

An extension of the monopulse technique for estimating the target azimuth in a secondary surveillance radar (SSR) is considered. The idea is to associate in pairs monopulse measurements coming from the amplitude processor (AP) at the dwell time processing level. This allows the automatic compensation of the bias errors due to the misalignments in the receiver channels, thus eliminating the necessity for periodic system calibration. This dual-pulse technique also allows for the practical use of the dot product receiver as a modification of the AP receiver. This, in turn, implies that the variance of each dual-pulse estimate is uniformly maintained at the monopulse maximum-likelihood level over the whole off-boresight angle (OBA) range

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:28 ,  Issue: 4 )