Navigation of aircraft by correlation
US4910674A · kind A · utility
27Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Jun 28, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G7/343
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of navigation and serial guidance under utilization of elevational data correlation, wherein a correlator compares terrain specific elevational reference data, with actually acquired and processed altitude data, is improved by using a millimeter wave sensor operating in the atmospheric window of about 94 gigahertz; and being operated during cruising by back and forth scanning in a substantially vertical down direction across a prescribed flight path; occasionally the sensor is pivoted about a horizontal axis, for scanning in the forward direction in a forward search mode for purposes of target acquisition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.