The localization in a classical multistatic passive radar is based on finding bistatic ellipsoid crossing with at least three pairs of transmitter-receiver. The localization accuracy is dependent on the geometry and bandwidth of the illumination signal. For narrow band signals like GSM cellular phone transmission the bistatic range resolution is very poor, in a range of several kilometers. The paper presents an alternative solution -exploitation of Doppler information and localization based on Doppler-only measurements. Because there were 4 unknowns (in 2-D localization: two spatial and to velocity components) or 6 unknowns (in 3D localization) it is necessary to have at least 4 or 6 bistatic measurements to localized the target. The paper presents the theory of Doppler-only target localization in GSM passive radar, related simulation results and accuracy considerations.
This paper presents the syste processing aspects and measurement results o Synthetic Aperture Radar (SAR) named presented system is a C-band radar develop Warsaw University of Technology. The main was to develop a low-cost, small-size and lowhigh resolution dedicated for small aircrafts unmanned aerial vehicles (UAV). For th SARENKA SAR system using the Frequ Continuous Wave (FMCW) concept was design first field tests of the system were done using on a lake as a target. As a result Inverse SAR the target were obtained. In this paper the pre this experiment are presented and discussed.
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