Real-time wideband holographic surveillance system

US5557283A · kind A · utility

Inventors

• David M. Sheen · Richland, US
• H. Dale Collins · Richland, US
• Thomas E. Hall · Fort Wayne, US
• Douglas L. McMakin · Richland, US
• R. Parks Gribble · Richland, US
• Ronald H. Severtsen · Richland, US
• James M. Prince · Kennewick, US
• Larry D. Reid · Benton City, US

Key dates

• Filing date: May 12, 1995
• Grant date: Sep 17, 1996
• Expiry date: May 12, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/7257
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A wideband holographic surveillance system including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply a three dimensional backward wave algorithm.