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1. (WO2010138696) SYSTEM AND METHOD FOR PASSIVE RANGE-AIDED MULTILATERATION USING TIME LAG OF ARRIVAL (TLOA) MEASUREMENTS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2010/138696 International Application No.: PCT/US2010/036368
Publication Date: 02.12.2010 International Filing Date: 27.05.2010
IPC:
G01S 13/93 (2006.01)
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88
Radar or analogous systems, specially adapted for specific applications
93
for anti-collision purposes
Applicants: WU, Ryan, Haoyun[US/US]; US (UsOnly)
SENSIS CORPORATION[US/US]; 85 Collamer Crossings East Syracuse, NY 13057, US (AllExceptUS)
Inventors: WU, Ryan, Haoyun; US
Agent: BURR, Stephen P.; Burr & Brown P.o. Box 7068 Syracuse, NY 13261-7068, US
Priority Data:
61/181,45927.05.2009US
61/226,83520.07.2009US
61/226,85220.07.2009US
Title (EN) SYSTEM AND METHOD FOR PASSIVE RANGE-AIDED MULTILATERATION USING TIME LAG OF ARRIVAL (TLOA) MEASUREMENTS
(FR) SYSTÈME ET PROCÉDÉ DE MULTILATÉRATION (MLAT) PASSIVE À COUVERTURE UTILISANT DES MESURES DE DÉCALAGE DE TEMPS D'ARRIVÉE TLOA
Abstract:
(EN) The present invention improves the performance of existing secondary surveillance radar (SSR) transponder multilateration (MLAT) systems using a Time Lag of Arrival (TLOA) measurement. The present invention correlates TCAS interrogation messages and reply messages, which are transmitted on different frequencies, to determine TLOA measurements that are used with TDOA MLAT to achieve higher positioning accuracy and greater surveillance coverage than conventional MLAT systems. The present invention applies to any MLAT system including surface MLAT, Wide-area MLAT, active MLAT, passive MLAT, range-aided MLAT, non-range aided MLAT, Precision Runway Monitoring (PRM) MLAT, and any other MLAT system based on receiving SSR transponder signals. The present invention also applies to Mode-S transponder signals and ATCRBS transponder signals.
(FR) La présente invention concerne des améliorations de performance des systèmes de multilatération par transpondeurs radars secondaires de surveillance (SSR) existants, utilisant une mesure de décalage de temps d'arrivée (TLOA). La présente invention corrèle les messages d'interrogation et de réponse du TCAS, transmis sur différentes fréquences, pour déterminer les mesures de TLOA utilisées avec la MLAT TLOA, afin d'obtenir une précision de positionnement plus élevée et une couverture de surveillance plus grande par rapport aux systèmes MLAT classiques. La présente invention s'applique à tout système MLAT, notamment aux systèmes de surface, à zone étendue, actifs, passifs, à couverture, sans couverture, de surveillance de précision des pistes (PRM), et tout autre système MLAT basé sur la réception des signaux de transpondeurs SSR. La présente invention s'applique également aux signaux de transpondeurs en mode S, et aux signaux de transpondeurs ATCRBS.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)