Abstract: Classification of radar objects involves processing a received radar signal in an input channel within a number of successive coherent integration intervals (bursts), detecting an object using Doppler filter amplitudes, and producing range reports. A number of range reports are combined using a cluster algorithm to form a plot, and adding Doppler filter amplitudes of the two azimuthally adjacent bursts from the same range cell each range report. As subset of the range reports is formed by, starting with the range report at the position of a plot centroid, arranging range reports from a defined number of bursts sorted according to azimuthal position in a matrix of the dimension azimuth x range with the plot centroid in the center. Doppler filter amplitudes from the region plot centroid +? a defined number of bursts associated with the range reports are arranged according to the burst sequence.

Abstract: A method for segmenting the data of a 3D sensor produced in the presence of aerosol clouds and for increasing the situation awareness and the location detection of obstacles involves transforming the sensor data are transformed into a 3D measurement point cloud, determining related subsets as measurement point clusters from the 3D measurement point cloud of an single measurement cycle of the 3D sensor based on the local measurement point density, determining at least one of the characteristic parameters of the individual measurement point clusters, the characteristic parameters including position, orientation in space, and shape, and determining a time variation of the characteristic parameters using the recorded parameters calculated from subsequent measurement cycles, from which the association of a measurement point cluster with a real obstacle or with the aerosol cloud results.

Abstract: A dual-Band phased array antenna with built-in grating lobe mitigation includes an array of radiating elements capable of working at both bands and arranged at distances small enough, avoiding grating lobes with respect to the lower band within the desired field of view. The radiating elements are arranged in planar subarrays that can be steered independently from each other and each of the subarrays has a different boresight normal vector, so that grating lobes in the upper band is mitigated.