Accession Number : ADD004537

Title :   Complex Pulse Repetition Frequency Generator.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Evans,Albert B , Jr

Report Date : 20 Sep 1977

Pagination or Media Count : 8

Abstract : A complex pulse repetition frequency generator for producing a pulse repetition frequency (PRF) signal having programmable stagger intervals. The device consists of a clock for selecting one of a series of standard clock pulses which are used to increment a counter. A comparator compares the accumulated clock pulses with a stagger data output signal produced by a data memory source. When the outputs are equal, the comparator produces a PRF output pulse. Two data memory bands are provided; a random access memory in which stagger data can be programmed by a series of switches, and a preprogrammed read-only memory. A pulse width generator allows the operator to vary the pulse width and utilizes an injection lock oscillator to prevent jitter whenever a standard clock pulse is used which is not an even multiple of a hundred nanoseconds.

Descriptors :   *Patents, *Signal generators, *Radar equipment, Pulse generators, Moving target indicators, Simulators, Intervals, Test equipment, Repetition rate

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE