CONTINUOUS WAVE RADAR ALTIMETER
Assignee
GEC-MARCONI LIMITED, THE GROVE, WARREN LANE, STANMORE, MIDDLESEX HA7 4LY, UNITED KINGDOM
Filed
May 20, 1988
Granted
Jul 14, 1998
Location
HOCKLEY GB
Abstract
A continuous wave radar altimeter comprises a memory (24, 26), means for storing in the memory in digital form an array of return signals representative of the variation of reflected amplitude with path length, means (27), for addressing the memory for identifying a peak return representative of the highest objects on the terrain, means (28) responsive to the array for determining the signal-to-noise ratio thereof, and means (29) responsive to the height at which the said peak return occurs and to the signal-to-noise ratio to determine a "center of area" height representative of the lowest surface on the terrain. The altimeter thus provides not only the peak level, representing for example the tops of trees and buildings, but also the ground level.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 28, 1988
Rescinded
May 30, 1997
Duration
8 years, 6 months
Inventor
- 1ROBERT A. SEVERWRIGHT
Record Details
- Patent number
- US 5781148
- Application
- 07199885
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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