A.V. Ivankin, E.F. Ivankin, V.A. Ponkin

One of directions of increase of information possibilities of active systems of remote supervision is joint existential processing (air defence) of the radiated and accepted signals. The expressions received in article allow to estimate potential accuracy of definition of a site of local reflectors of system from air defence of the radiated and accepted signals. Expressions have enough general view and are applicable to systems with any configuration transferring and reception th of aerials and various algorithms of reception of results of primary measurements. In special cases, in process of narrowing of a class of considered systems, expressions become simpler and in an explicit form allocate laws of measurement of co-ordinates of objects of systems from air defence of the radiated and accepted signals. The analysis of potential accuracy of definition of a site of local reflectors shows that in the absence of displacement of an error of estimations of definition of co-ordinates of a local reflector are некореллированными. The greatest effect in increase of accuracy of measurement can be reached at use of a method of synthesising of reception and transferring aerials at the expense of scanning by a send-receive element. Formulas for calculation conditional (are received at preset values of true co-ordinates) ковариаций errors of estimations of accuracy of definition of co-ordinates of a site of local reflectors at joint air defence of the radiated and accepted signals. The received formulas cover the general case of an arrangement of a local reflector in a distant both near zone and a zone of Frenelja of reception and transferring aerials. With use of the received formulas the comparative estimation of potential information possibilities of systems by definition of a site of local reflectors is spent.