PULSE COMPRESSION RADAR AND APPLICATION TO CARTOGRAPHY OR METEOROLOGY

摘要

P The radar, of the type with quasi-linear modulation of the frequency of the signal emitted during the pulse, comprises a transmission channel provided with a high frequency oscillator 29, a transceiver antenna 7 and a transmission channel. receiving device provided with a pulse compression member 33. According to the invention, in the transmission chain, an Impatt diode 17 of a combiner with a diode 16 directly generates a synchronization signal of the oscillator ( pulses modulated according to negative frequency ramps). For this purpose, a clock generator 26 controls in conduction, for each pulse to be emitted, a switch 25 arranged in series on the substantially constant current supply conductor 19 of the Impatt 17 diode. / P P Application to cartography or meteorology. / P