Patent ID: 6373426
Filing Date: 2002-04-16
Classification: G01S

Abstract:
A radar station placed on the surface of the earth in a vehicle, a vessel or a stationary installation, comprising a transmitter, an antenna system for transmitting and receiving, a receiver and signal-processing equipment, characterised inthat the radar station is adapted, with a periodicity of 10 Hz-10 kHz, to transmit and receive radar signals of arbitrary polarisation, having a maximum frequency below 500 MHz and a bandwidth exceeding 50% of the maximum frequency, that the signal-processing equipment is adapted to arrange data in range, R, and time, t, on the assumption that the time for the transmission of the radar signal and the reception of the reflex is determined with an accuracy given by the bandwidth, that the signal-processing equipment is adapted to handle data from a large number of transmission periods, of the order of 102-104, and to carry out an independent summation over each combination of range and time which, on the basis of a-priori knowledge about speed and acceleration performance of the targets to be detected, constitutes a physically-technically possible range history, R(t), and that the signal-processing equipment is adapted to select the radar amplitudes for range histories that exceed a predetermined threshold value and indicate them as detected targets.