  Recent advances in digital beam forming for phased arrays in combination with
digital signal processing should enable the development of multibeam radar in a
bistatic configuration. In the bistatic setting, the pulse travelling outward
from the transmitter should be followed or "chased" by the receiver. During
transmission, depending on the location of the transmitter, receiver, and
pulse, the number of digital beams and their location at the transmitter vary.
In this paper, we analyse the geometrically depending number of digital beams
and the beam switching rate of the receiver needed for pulse chasing. In
addition, we derive the pulse repetition frequency (PRF) for the bistatic
configuration based on the desired detection range. It is shown that the PRF in
the bistatic case can be increased compared to its monostatic counterpart when
the distance between the transmitter and the receiver is increased. Our results
are applied on the scenario of an air traffic control radar to show the
feasibility of a multibeam, ground based bistatic surveillance radar. It will
be demonstrated that the maximum PRF can almost be doubled and an adaptive
sensing and tracking paradigm can lead to a maximum of 64 simultaneous receiver
beams for the bistatic surveillance and tracking setting.
