METHOD OF RADAR SURVEILLANCE AND OF RADAR SIGNAL ACQUISITION

摘要

A radar termed radar 1 is equipped: - with an antenna structure, - with means of transmitting an impulse signal (S1) in a band centred on (F1) according to a repetition period centred on a recurrence period (Tr1) and of pulse width (T1), - with means of receiving signals by the antenna in a frequency band (?F), - with a unit for processing the signals received on a set of (N) distance bins. The signals received are transmitted by another radar (2) in a frequency band centred on (F2) such that (F2-F1 = ?F), according to a repetition period centred on a period Tr2 and of pulse width (T2). The signals emitted by the radar 1 and the radar 2 are asynchronous. The method comprises the following steps: - A) slaving of the frequency (F1) to the frequency (F2), by measuring the power received integrated over the set of (N) distance bins and over several recurrences, - B) determination of the period (Tr2 and T2)= and slaving of the period centred on Tr1 to a period centred on (Tr2) with (Tr1 = k Tr2).