RANGING SYSTEMS
Assignee
GEC - MARCONI LIMITED
Filed
Feb 27, 1990
Granted
Mar 24, 1998
Location
ESSEX GB
Abstract
A continuous wave ranging system comprises a modulator for modulating an r.f. carrier signal in accordance with a pseudo random code, a transmitting antenna for radiating the signal towards a target, a receiving antenna and receiver for detecting the signal reflected from the target, a correlator for correlating the detected signal with the transmitted code with a selected phase shift corresponding to the current range gate to be tested, whereby the range of the target from the system may be determined, and filtering means for filtering from the output of the correlator those range gate amplitudes which vary with a frequency less than a predetermined value.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jul 26, 1990
Rescinded
Nov 15, 1996
Duration
6 years, 3 months
Inventor
- 1RAYMOND J. WALLS
Record Details
- Patent number
- US 5731782
- Application
- 07489933
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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