Accession Number : ADD010109

Title :   Dual Mode Moving Target Sensor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Clinard,Glenn G ; Guth,Kenneth C ; Mulhollam,Gail R ; Volk,Frank J

Report Date : 11 Jan 1983

Pagination or Media Count : 8

Abstract : A dual mode sensor having a seismic channel and an RF channel with a logic circuit recognizing both channels. The seismic channel detects disturbances with a geophone and determines the spacing and the density of the impulses while the RF channel radiates electromagnetic energy and detects impedance changes in the oscillator circuit driving the antenna when the target is in the field. The rates of changing impedances and their thresholds are determined. (Author)

Descriptors :   *Patents, *Seismic detection, *Detectors, *Geophones, *Radar antennas, Dual mode, Pattern recognition, Near field, Radiofrequency oscillators, Activation

Subject Categories : Active & Passive Radar Detection & Equipment
      Seismic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE