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1. (WO2019045608) THE DESCRIBED INVENTION IS A METHOD AND A SYSTEM FOR DETERMINING POSSIBLE GEOGRAPHIC POSITIONS OF AT LEAST ONE ASSUMED UNDETECTED TARGET WITHIN A GEOGRAPHIC VOLUME OF INTEREST
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Pub. No.: WO/2019/045608 International Application No.: PCT/SE2017/050867
Publication Date: 07.03.2019 International Filing Date: 31.08.2017
IPC:
G01C 7/00 (2006.01) ,G01S 13/00 (2006.01) ,G01S 17/66 (2006.01)
G PHYSICS
01
MEASURING; TESTING
C
MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
7
Tracing profiles
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
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
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
66
Tracking systems using electromagnetic waves other than radio waves
Applicants:
SAAB AB (publ) [SE/SE]; 581 88 Linköping, SE
Inventors:
DICANDER, Fredrik; SE
Agent:
ZACCO SWEDEN AB; Box 5581 Valhallavägen 117N 114 85 Stockholm, SE
Priority Data:
Title (EN) THE DESCRIBED INVENTION IS A METHOD AND A SYSTEM FOR DETERMINING POSSIBLE GEOGRAPHIC POSITIONS OF AT LEAST ONE ASSUMED UNDETECTED TARGET WITHIN A GEOGRAPHIC VOLUME OF INTEREST
(FR) PROCÉDÉ ET SYSTÈME DE DÉTERMINATION DE POSITIONS GÉOGRAPHIQUES POSSIBLES D'AU MOINS UNE CIBLE NON DÉTECTÉE SUPPOSÉE À L'INTÉRIEUR UN VOLUME GÉOGRAPHIQUE D'INTÉRÊT
Abstract:
(EN) A sensor surveillance system (100) and a method for determining possible geographic positions of at least one assumed undetected target (la-n) within a geographic volume of interest (200) is provided, wherein for a first point in time ti the following steps are performed: dividing the geographic volume of interest (200) into sections (10); assuming the existence of an assumed undetected target (la-n) at a geographic position within each section (10); and initiating the creation of a pattern (2) defining at least one possible geographic position of the assumed undetected target, said pattern extends at least partially around the geographic position of the assumed undetected target (la-n); wherein the geographic extension of said pattern is determined based on: the category of the assumed undetected target (la-n); and the amount of time that has passed from the first point in time tl. Further, for a second point in time t2 the following steps are performed: determining geographic locations (205) within said geographic volume of interest (200) from where sensor signals show absence of targets; and removing the pattern (2) from the geographic locations (205) from where sensor signals show absence of targets.
(FR) L'invention concerne un système de surveillance de capteurs (100) et un procédé de détermination de positions géographiques possibles d'au moins une cible non détectée supposée (la-n) à l'intérieur d'un volume géographique d'intérêt (200) consistant, pour un premier instant t1 : à diviser le volume géographique d'intérêt (200) en sections (10) ; à supposer l'existence d'une cible non détectée supposée (la-n) à une position géographique à l'intérieur de chaque section (10) ; et à lancer la création d'un motif (2) définissant au moins une position géographique possible de la cible non détectée supposée, ledit motif s'étendant au moins partiellement autour de la position géographique de la cible non détectée supposée (la-n) ; l'extension géographique dudit motif étant déterminée en fonction : de la catégorie de la cible non détectée supposée (la-n) ; et du temps écoulé depuis le premier instant t1. En outre, pour un second instant t2, les étapes suivantes sont effectuées : la détermination d'emplacements géographiques (205) à l'intérieur dudit volume géographique d'intérêt (200) à partir desquels des signaux de capteur montrent l'absence de cibles ; et la suppression du motif (2) des emplacements géographiques (205) à partir desquels des signaux de capteur montrent l'absence de cibles.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)