Accession Number : ADD017894

Title :   ECM for Long-Range Radars.

Descriptive Note : Patent, Filed 16 Apr 80, patented 31 Oct 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Lewis, Bernard L

Report Date : 31 Oct 1995

Pagination or Media Count : 6

Abstract : An electronic countermeasure system carried aboard a target that creates false targets in front of and/or behind the target. The radar's transmitted signal is repeated back to the radar with a frequency effect, which induces the range-doppler coupling feature of the pulse-compression circuit to compress early or late by the ratio of the frequency offset to the radar receiver bandwidth times the uncompressed pulsed length of the radar signal.

Descriptors :   *RADAR, *ELECTRONIC COUNTERMEASURES, *PATENTS, COUPLING(INTERACTION), FREQUENCY, RATIOS, ELECTRONIC EQUIPMENT, PULSES, LENGTH, LONG RANGE(DISTANCE), RADAR RECEIVERS, CIRCUITS, RADAR SIGNALS, DOPPLER SYSTEMS, RANGE(DISTANCE), BANDWIDTH, FALSE TARGETS, PULSE COMPRESSION, FREQUENCY SHIFT

Subject Categories : Countermeasures
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE