1. The intensity of echoes tends to decrease with increasing distance from the radar. This is because: a) The radar beam broadens with distance, thus decreasing the proportion of the beam which is ...
That's why the radar may appear to show rain when rain isn't occurring. This is called virga. If the radar is close to the coast and the beam is broad enough, it may reflect off the sea and return ...
Abstract: The series-feed microstrip patch antenna used in automotive radar usually exhibits beam squint issues, which significantly reduce the radar’s perception capability. However, there is ...
Abstract: In this letter, a novel radar forward-looking imaging technique based on beam pattern modulation and beam scanning is presented. First, the chirp beam, which presents quadratic varying ...
What's more, it does not emit radar beams that are reflected by an object and then deflected back to the receiver. Instead, it uses beams that are already present. Passive radar is not only cost ...