DETERMINATION OF THE TIME POSITION OF A TRAIN OF COHERENT PULSES

When synchronizing communications systems the problem arises of estima ting the time position of pulses. Interference in the communications c hannel can have a considerable effect on the accuracy of the estimate. In view of this, there is a need to find optimum algorithms and estim ation devices which have the best accuracy when acted upon by a known class of interference. By carrying out a statistical synthesis of the optimum measuring system, designers can find ways of improving practic al measuring systems with the aim of increasing their accuracy. A meth od of estimating the parameters of a train of pulses when there is no interperiod correlation of the interference was considered in [1]. Nev ertheless, it is of interest to find a method of estimating the parame ters when correlated (narrow-band) interference is acting on the syste m. Below we propose algorithms and devices for estimating the time pos ition of a train of coherent pulses on a background of Gaussian correl ated interference.