SONAR BEARING ESTIMATION OF EXTENDED TARGETS
Assignee
RAYTHEON COMPANY, LEXINGTON, MASSACHUSETTS 02173, U.S.A., A CORP. OF DE.
Filed
Aug 31, 1987
Granted
Sep 7, 1999
Location
PORTSMOUTH RI US
Abstract
An improved bearing estimation sonar system provides high resolution imaging of extended multi-highlight targets at long ranges. The complex outputs of a pair of offset-phase centered beams are first processed by segmented replica correlators to achieve pulse compression, followed by cross-correlation to provide high fidelity bearing estimates for target imaging. The technique exploits space-time coherence properties of the target receive signal to extract high resolution target information. The processing employed in the system also includes data editing schemes resulting in enhanced discernability of submarine-like targets which is essential for target classification. Substantial processing gains are realizable by the system of this invention.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jun 24, 1988
Rescinded
Apr 12, 1999
Duration
10 years, 9 months
Inventor
- 1SUDHA S. REESE
Record Details
- Patent number
- US 5949739
- Application
- 07091473
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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