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A bistatic radar consists of a separated  (by a considerable distance) transmitting and receiving site. Therefore, a monostatic Doppler radar can be upgraded easily with a bistatic receiver system. With a single bistatic receiver 2-dimensional wind field can be measured in real time. A second bistatic receiver with coverage in the same lobe can be used to give a 3-dimensional vector wind field.
Around Oberpfaffenhofen a Bistatic Multi-Doppler Radar Network consisting of three bistatic receivers and  the transmitting and additional receiving  Polarisation-Doppler Radar POLDIRAD
Current research topics are the determination of 3-dimensional and 2-dimensional wind fields with  3 bistatic receivers. Furthermore, investigations on  reducing errors in wind field measurements to use them as input data for mesoscale models are carried out.
The bistatic radar  research group is a part  of the Polarisation-Doppler  Radar POLDIRAD radar  team, where e.g. research in classification of hydrometeors on behalf of differential reflectivity, depolarization is carried out. as well as a quantitative estimation of precipitation, lightning as depending on the micro physical developments and NOx production in thunderstorms are actual research topics.

There had been visitors since November 1999 !!!