Synchronized pulse amplitude control for pulse measuring circuit

Details Synchronized pulse amplitude control for pulse measuring circuit Synchronized pulse amplitude control for pulse measuring circuit

1977-02-02

1978-09-19

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 734, G01S 902

Patent

active

041157737

ABSTRACT:
A standard amplitude pulse is transmitted as a cyclically recurring pulse in a radar ranging system. At a receiver, identified by the pulse repetition rate of the recurring pulses, each pulse is analyzed for its deterioration from the standard in order to detect fading. An amplifier, having a controlled gain, is adjusted responsive to the analysis, and the uniformity is restored to the pulse despite variations in fading. In some cases, a threshold detection is used to prevent response to minor variations. A pulse repetition rate detector insures that the pulses are so controlled at only the identified station, and that the identified station responds only to pulses with the proper repetition rate.

REFERENCES:
patent: 2579497 (1951-12-01), Isbister
patent: 2728852 (1955-12-01), Moran, Jr.
patent: 3168731 (1965-02-01), Shub et al.
patent: 3487405 (1969-12-01), Molho et al.
patent: 3518668 (1970-06-01), Woolvin

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