Accession Number : ADD002903

Title :   Circuit for Generating a Digital or Analog Signal as a Function of Doppler Frequency.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Linder,John L

Report Date : 18 May 1976

Pagination or Media Count : 10

Abstract : The patent relates to a control circuit having a digital memory for providing sweep voltages to receivers in a doppler satellite tracking station of proper amplitude and duration to ensure searching in the correct doppler frequency range. An internally generated ramp function voltage is combined with a reference voltage to produce a composite sweep signal for the receiver. The reference voltage level is determined either from a set of digiswitches or from a digital memory circuit which outputs a digital signal that is a function of the frequency of a received doppler signal.

Descriptors :   *Sweep generators, *Patents, Satellite tracking systems, Doppler systems, Circuits, Digital systems, Analog systems, Signal generators, Receivers

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE