Patent · US Expired

Active remote sensing using lock-in amplifiers and beam steering

US7009705B1 · kind B1 · utility

4Cited by
10References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 18, 2002
Grant dateMar 7, 2006
Priority date—
Expiry dateSep 11, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S7/497
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A remote sensing platform for sensing a target may include a source configured to emit optical radiation toward the target. A device may be configured to dither the emitted optical radiation to alternately illuminate a number of locations on the target. A first detector may be configured to detect radiation reflected from a first location of the number of locations and to generate a first signal. A first lock-in amplifier may be configured to process the first signal. A second detector may be configured to detect radiation reflected from a second location of the number of locations and to generate a second signal. A second lock-in amplifier may be configured to process the second signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.