Accession Number : ADD016495

Title :   Frequency-Coded Monopulse MTI.

Descriptive Note : Patent, Filed 23 Jul 76, patented 13 Sep 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Lewis, Bernard L ; Cantrell, Ben H

Report Date : 13 Sep 1994

Pagination or Media Count : 7

Abstract : A pulse-compression, MTI, doppler-radar system for determining target velocity information from a single, frequency-coded uncompressed target-return pulse includes a coded modulator, two pulse compressors, and a phase-comparison processor. The coded modulator generates for transmission an uncompressed pulse with the first and second halves of the pulse coded with the even and odd harmonic sidebands of a pulse repetition frequency, respectively. The first and second halves of the pulse returning from the target are pulse compressed simultaneously by the two pulse compressors. The phase comparison processor then determines the phase difference between the compressed pulses to obtain the target velocity information.

Descriptors :   *DOPPLER RADAR, *PULSE COMPRESSION, *PATENTS, *MONOPULSE RADAR, *MOVING TARGET INDICATORS, FREQUENCY, HARMONICS, RADAR, SIDEBANDS, TARGETS, VELOCITY, PHASE MODULATION, MIXERS(ELECTRONICS), RADIOFREQUENCY

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE