Automatic gain control circuit for a pulsed radar

Details Automatic gain control circuit for a pulsed radar Automatic gain control circuit for a pulsed radar

G - Physics

01

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343/60

G01S 1/24 (2006.01) G01S 7/34 (2006.01) H03G 3/20 (2006.01) H03G 3/32 (2006.01)

Patent

CA 1119701

Abstract Automatic gain control (AGC) circuit for an IF amplifier utilised in the receiver of a pulsed radar. The AGC circuit is provided with a noise measuring circuit for determining the minimum value of a number of average noise levels over corresponding time intervals of given short duration within the length of time for the range-independent RF signal amplification in the pulse repetition period. Such a noise level, based on the minimum value, can be considered to be least influenced by rain clutter. The IF amplifier is adjusted to this noise level.

284835

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