Doppler laser radar system
US4893923A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1986 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Oct 6, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/87
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A coherent laser radar system in which a number of individual receiver modules are deployed in an area relatively near the targets to receive signals originating at a transmitter located at a much greater distance from the target area. The radar is particularly adapted for the midcource detection and tracking of missiles in space and differentiating between reentry vehicles and decoys. This permits a number of receivers to be positioned at separate points, each capable of receiving and analyzing reflected signals originating from a single transmitter. Direct communication between the transmitter and each receiver permits the transmitter to know at all times the location, velocity and direction of each receiver thus permitting the receivers to be positioned near the targets relative to the position of the transmitter. This in turn permits a wider divergence of the transmitted signal and markedly reduces the cost while making possible the simultaneous tracking and analysis of a number of targets thereby improving the performance of the system by a wide margin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.