S.S. Semenyuk, V.V. Utkin, L.N. Berdinskih

There are many technical equipments and system of radio monitoring and position location at the present time. Among them system used range-difference measuring method is widely distributed. One of the most upcoming trends is development of spaced multifunction portable sensors net for radio monitoring including position location. Therefore estimating geometric factor of spaced sensors net influence on the radio-frequency source location error by range-difference measuring method is necessary. In article sensors net is set of distributed in space multifunction portable devices which are capable of receive and registration the signals of radio-frequency source for sending them on the point of data receiving and computing. In case of measurements redundancy (sensors number over four) for calculation of estimation radio-frequency source coordinates in space least-squares method was used. On basis of this method formula, allowing to estimate coefficient of geometric error, was given. This coefficient defines as geometric configuration of spaced sensors net influence on the radio-frequency source location error. By given formula working spaces of sensors net used range-difference measuring method and constant error surfaces can be explored.