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

1977-09-01

1979-03-13

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 734

Patent

active

041445333

ABSTRACT:
Disclosed is an automatic gain control (AGC) circuit for an IF amplifier utilized 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.

REFERENCES:
patent: 2711531 (1955-06-01), Murdock
patent: 3845481 (1974-10-01), Danzer et al.
patent: 4042922 (1977-08-01), Natter et al.

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