Patent · US Expired

Precision navigation apparatus

US4347511A · kind A · utility

22Cited by

6References

12Claims

0Family size

Assignee

Messerschmitt Bolkow Blohm GmbH · DE

Inventors

Otto Hofmann · Lechenich, DE
Walter Kroy · Ottobrunn, DE
Peter Nave · Höhenkirchen-Siegertsbrunn, DE

Key dates

Filing date	Mar 31, 1980
Grant date	Aug 31, 1982
Priority date	—
Expiry date	Mar 31, 2000

Classification

Technology area (CPC G)Physics
CPC primaryG01C21/005
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In the disclosed apparatus, a reference image sensor continuously scans a lmed atlas of images representing terrain being overflown while a second sensor simultaneously scans the terrain. A correlator compares the signal and the reference image sensor describes a course, corresponding to that of the flying body, over the film, in response to control signals based upon the correlation results. The reference image sensor reads only the area of the film around the course.

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