Accession Number : ADD012221

Title :   Dual Scan Rate Radar.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Waters,William M

Report Date : 25 Feb 1986

Pagination or Media Count : 6

Abstract : A dual scan rate radar system (DSR) including a phased array antenna, a transmitter, a receiver and a control unit. Each rf pulse from the transmitter includes contiguous long-range and short-range pulses. The control unit adjusts the antenna so that the long-range pulse is transmitted into a slow beam at theta s and the short-range pulse is transmitted into a fast beam at theta F. The control unit also adjusts the antenna to receive the short-range pulse echos during a first part of the interpulse interval and the long-range pulse echos during a second part of the interpulse interval. The angles theta S and theta F are varied so that the slow and fast beam are scanned at dual rates RS and RF, respectively, where RS RF.

Descriptors :   *PATENTS, *RADAR SCANNING, *ANTENNA ARRAYS, *PHASED ARRAYS, *RADAR PULSES, CONTROL SYSTEMS, LONG RANGE(DISTANCE), *RADIOFREQUENCY PULSES, SHORT RANGE(DISTANCE), DUAL MODE, SCANNING, PULSES, RADAR, RATES

Subject Categories : Electrical and Electronic Equipment
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE