Remote sensing apparatus for satellites
US4748448A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1983 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Jun 28, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to remote sensing from a satellite of a parameter in one or more regions on the ground adjacent the satellite ground track by radar transmission. The purpose of the invention is to reduce energy consumption and optimize measurement accuracy. A transmitter antenna generates a plurality of pencil radar beams which illuminate respective cells of the region. A control means successively energizes the antenna at respective frequencies for respective pulse durations and for respective number of pulses. The invention is particularly appliable to scatterometer apparatus for responding to wind speed and direction by sensing radar backscatter from sea.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.