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Spatial processing redundancy and accuracy of multichannel estimation of radar object angular coordinates

The paper studies the accuracy characteristics of radar object angular coordinates estimation fulfilled by the spatially multichannel procedures, which are based upon a ring shaped model of radar signal receiving and differ among themselves by redundancy factor. It is shown in analytical evaluation that the spatial processing structures of minimal and ultimate redundancies are equate by potential accuracy criterion when signal-to-noise ratio is high, otherwise at the area of low signal-to-noise ratios the advancement of redundancy factor is resulted in estimation error reduction down to Cramer-Rao bound.