EP 0897544 A4 20000524 - RADAR/SONAR SYSTEM CONCEPT FOR EXTENDED RANGE-DOPPLER COVERAGE
Title (en)
RADAR/SONAR SYSTEM CONCEPT FOR EXTENDED RANGE-DOPPLER COVERAGE
Title (de)
RADAR/SONAR-SYSTEMKONZEPT FÜR ERWEITERTEN ENTFERNUNGS-DOPPLER-ERFASSUNGSBEREICH
Title (fr)
CONCEPT DE SYSTEME RADAR/SONAR POUR COUVERTURE DISTANCE/DOPPLER ETENDUE
Publication
Application
Priority
- US 9706807 W 19970430
- US 1677996 P 19960508
- US 79674997 A 19970206
Abstract (en)
[origin: WO9742520A1] A method and apparatus for preventing the occurence of range ambiguities and Doppler ambiguities in both a radar and sonar environment. A series of N pulses are produced, each of which contains a number of contagious subpulses. Each of the subpulses exhibits a different frequency than the remaining subpulses in that particular pulse. Furthermore, the order of appearance of the subpulses in each of the pulses is unique with respect to the remaining pulses in the series. A matched filter receiver (10) and Doppler processor (30) are used to provide auto correlations and cross correlations (R1-RN) to prevent the range ambiguities and Doppler ambiguities.
IPC 1-7
IPC 8 full level
G01S 13/526 (2006.01); G01S 13/53 (2006.01); G01S 13/58 (2006.01); G01S 13/90 (2006.01); G01S 15/52 (2006.01); G01S 13/20 (2006.01); G01S 13/22 (2006.01); G01S 13/24 (2006.01); G01S 15/58 (2006.01); G01S 15/89 (2006.01)
CPC (source: EP US)
G01S 13/582 (2013.01 - EP US); G01S 13/9029 (2013.01 - EP); G01S 13/20 (2013.01 - EP); G01S 13/22 (2013.01 - EP); G01S 13/24 (2013.01 - EP); G01S 15/584 (2013.01 - EP); G01S 15/8904 (2013.01 - EP)
Citation (search report)
- [XA] US 5347281 A 19940913 - LEWIS BERNARD L [US], et al
- See references of WO 9742520A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9742520 A1 19971113; AU 3203497 A 19971126; AU 712338 B2 19991104; CA 2253235 A1 19971113; EP 0897544 A1 19990224; EP 0897544 A4 20000524; IL 126925 A0 19990922; JP 2000509811 A 20000802; NO 985154 D0 19981105; NO 985154 L 19981223
DOCDB simple family (application)
US 9706807 W 19970430; AU 3203497 A 19970430; CA 2253235 A 19970430; EP 97927606 A 19970430; IL 12692597 A 19970430; JP 53994797 A 19970430; NO 985154 A 19981105