Pulsed radar systems and pulsed radar receivers

摘要

1,000,438. Pulse radar. MARCONI CO. Ltd. Sept. 11, 1963 [Sept. 21, 1962], No. 35948/62. Heading H4D. In a pulse radar receiver the dynamic range over which amplification is to take place is reduced by expanding the pulse duration, by means of a dispersive network amplifying the expanded pulse, and compressing the amplifier output back to the original pulse duration by means of a second dispersive network. The pulse expansion network 4 may be a known kind consisting of bridged-T sections, Fig. 2 (not shown). By utilizing the frequencychanging process illustrated the same design of network may be utilized for pulse compression. An expansion factor of 100 is mentioned.