A new approach for height finding in 2-D search Radars

In this paper, we present a new method for height finding in 2-D (range-azimuth) search radars. The idea is based on the fact that the rate at which Doppler frequency of a target changes as target moves away from or toward the radar, depends on the height of the target for fixed target range and velocity. Radon transform is used to find the rate of the Doppler frequency changes using Doppler history of the target over several scans. Analysis for calculation of target height from its range, Doppler frequency, the rate of Doppler changes and radar operating frequency is given in detail. A computer simulation is also accomplished to illustrate the performance of the proposed method.