Technology Offers



Digital Beamforming with Frequency-modulated Signals

Digital beamforming is a process that allows an estimation of the angle for received radar signals by making use of the phase difference in an array of receiver antennas which work synchronously. Due to the frequency shift, signals with low modulation indices are transformed in a quasi monofrequency manner. If the phase difference between neighboring antenna elements exceeds 2π, the result is no longer unambiguous and results in so-called grating lobes.  The present invention allows to recognize and resolve such ambiguities, thus allowing the correct angle measurement to be determined.

The number of elements in a cluster of senders and receivers can be reduced. The well-known compromise between the angular field able to be depicted without ambiguity and the achievable angular resolution is resolved.

 

 

Process for the Simultaneous Amplitude Allocation in Multi-Sender Multi-Receiver Groups for Digital Beamforming

Digital Beamforming Systems simultaneously improve resolution and dynamic range.  The dynamic range of a system suffers when there are only a limited number of senders and receivers. The present invention offers a process to increase the dynamic range of multi-sender multi-receiver systems which have only a small number of elements in the group. The system provides increased dynamic response even with a small number of antennae combined with a reduction of the number of elements in a group of senders and receivers