ANALYSIS OF ACCURACY OF SPATIAL SYNCHRONIZATION OF TEMPORAL POSITION OF SIGNALS OF PULSED PHASED ANTENNA ARRAY OF SUBNANOSECOND RANGE IN PRESENCE OF RANDOM CHANNEL DELAYS

Abstract

The structure of the pulsed phased antenna array (PPAA) of the sub nanosecond range with the system of automatic synchronization  of the temporal position of the emitted ultra short pulses is presented. The analysis of the causes and the quantitative estimation of the instrumental error of the PPAA channels has been carried out. The partial contribution to the instrumental error of the  channel functional nodes is estimated. Mathematical modeling has been carried out in order to assess the effect of channel delay  spread on the total intensity of the emitted signal for the Gaussian and normal laws of their distribution. An acceptable range of variation of channel delay values is determined, correlated to the duration of the pulses emitted by the antenna modules, with an  acceptable reduction in the quality of their spatial synchronization. The locations of possible localization in the PPAA structure of  temporal modulators intended for the initial alignment of channels and electronic scanning by the beam of the radiation pattern are indicated. The requirements for the parameters of splitter modulators are formulated. The simulation results are confirmed  by experimental studies.