A time-difference of arrival (TDOA) approach to locateactive jammer source has been evaluated. The discussedmonitoring system consists of several receiversdistributed in space. In the proposed system time andfrequency synchronization of monitoring receivers isimplemented using GNSS observations. To achieve highaccurate measurements both jammer and GNSS signalsfrom all receivers are processed together simultaneously.Baseband processing block implements cross-correlationdelay determination algorithm and calculates jammerposition. This approach provides a possibility ofdetermining a comparatively high accurate jammerlocation.Both computer simulation and experiments were used totest jammer monitoring system. The result of the studyhas shown that pseudorange-based jammer locationtechnique can be implemented in practice.
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