Eads Deutschland Gmbh

Airbus Ds Electronics and Border Security Gmbh

Andreas Strecker

Andreas Wieszt

Nergess Al-Youssof

Thomas Mahr

A method for detecting targets and determining their distance by means of an HPRF radar system including a transmitter for transmitting bursts having a preselectable number Z of transmission pulses and a preselectable pulse repetition frequency PRF and a receiver for receiving the echo signals. Successive bursts are transmitted with a preselectable time lag, where the time lag corresponds to a preselectable number E of transmission pulses. A data record of Z+E detected signals is generated, where each detected signal consists of superimposed echo signals from different unique distance ranges, each distance range having a number A of distance lines, each line having Z+E distance cells. A target is detected by calculating a Z+E-point fast Fourier transform for each distance line, and determining when the signal amplitude is greater than a preselectable threshold value. The distance to a target is determined by calculating spectra of Z-point fast Fourier transforms for the distance lines by shifting a Z-point FFT window incrementally over the Z+E distance cells of a distance line.

Growing community of inventors

Uhingen, Germany

Andreas Strecker