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1. (WO2019048291) METHOD AND DEVICE FOR GENERATING A MODULATED CONTINUOUS-WAVE RADAR SIGNAL
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Pub. No.: WO/2019/048291 International Application No.: PCT/EP2018/073102
Publication Date: 14.03.2019 International Filing Date: 28.08.2018
IPC:
G01S 7/35 (2006.01) ,G01S 7/42 (2006.01) ,G01S 13/34 (2006.01) ,G01S 13/42 (2006.01) ,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
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
02
of systems according to group G01S13/58
35
Details of non-pulse systems
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
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
02
of systems according to group G01S13/58
42
Diversity systems specially adapted for radar
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
02
Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06
Systems determining position data of a target
08
Systems for measuring distance only
32
using transmission of continuous unmodulated waves, amplitude-, frequency- or phase-modulated waves
34
using transmission of frequency-modulated waves and the received signal, or a signal derived therefrom, being heterodyned with a locally-generated signal related to the contemporaneous transmitted signal to give a beat-frequency signal
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
02
Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06
Systems determining position data of a target
42
Simultaneous measurement of distance and other coordinates
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:
HELLA GMBH & CO. KGAA [DE/DE]; Rixbecker Straße 75 59552 Lippstadt, DE
Inventors:
BREDDERMANN, Tobias; DE
Priority Data:
10 2017 120 368.005.09.2017DE
Title (EN) METHOD AND DEVICE FOR GENERATING A MODULATED CONTINUOUS-WAVE RADAR SIGNAL
(FR) PROCÉDÉ ET DISPOSITIF DE GÉNÉRATION D'UN SIGNAL MODULÉ D'UN RADAR À ÉMISSION CONTINUE
(DE) VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG EINES MODULIERTEN DAUERSTRICHRADARSIGNALS
Abstract:
(EN) The invention relates to a method for measuring the elevation angle (φΕ) and/or azimuth angle (φΑ) using an antenna arrangement, wherein the antenna arrangement comprises – at least two transmission antennas (Tx), which are at a horizontal and a vertical distance (d Tx , d Ty ) from one another, – at least four reception antennas (Rx), which are at a horizontal distance (d R ) from one another, – and a monolithic microwave circuit, wherein identical transmission signals consisting of successive, linear-frequency-modulated ramps are transmitted via the transmission antenna (Tx) of the antenna arrangement using time division multiplexing, wherein the time division multiplexing is achieved by alternately damping the signals emitted by the transmission antennas (Tx),wherein echos of the transmission signals are received by the reception antennas (Rx) and are downconverted to a baseband and sampled,wherein the downconverted and sampled echos are transformed into a 2D image domain by means of an FFT, wherein phase differences (Δφ1, Δφ2) are determined from the image data, and wherein for compensation of a systematic error present owing to the lack of separation of the two transmission signals, after the measurement of the phase differences (Δφ1, Δφ2) or after the measurement of the phase differences (Δφ1, Δφ2) and the calculation of an azimuth angle (I) or elevation angle (II) which is erroneous on account of the lack of separation of the transmission signals, from the measured phase differences, an error-compensated elevation angle and/or an error-compensated azimuth angle is determined by means of a compensation.
(FR) L'invention concerne un procédé permettant de mesurer l'angle d'élévation (φΕ) et/ou l'angle azimut (φΑ) au moyen d'un système d'antennes, le système d'antennes présentant - au moins deux antennes émettrices (Tx) qui sont à une distance horizontale et à une distance verticale (dTx , dTy ) l'une de l'autre, - au moins quatre antennes réceptrices (Rx) qui sont à une distance horizontale (dR ) l'une de l'autre, - et un circuit à micro-ondes monolithique. Des signaux d'émission continus multiplexés par répartition dans le temps qui sont composés de rampes successives modulées en fréquence linéaire sont émis par l'intermédiaire de l'antenne émettrice (Tx) du système d'antennes, le multiplexage par répartition dans le temps étant obtenu par une atténuation alternée des signaux émis par les antennes émettrices (Tx), les antennes réceptrices (Rx) reçoivent des échos des signaux d'émission qui sont mélangés et balayés dans une bande de base, les échos mélangés et balayés sont transformés au moyen d'une FFT en une zone d'image 2D, des différences de phase (Δφ1, Δφ2) sont déterminées à partir des données d'image et, pour compenser une erreur systématique existant en raison de l'absence de séparation des deux signaux d'émission - après la mesure des différences de phase (Δφ1, Δφ2) ou - après la mesure des différences de phase (Δφ1, Δφ2) et le calcul d'un angle azimut (I) ou d'un angle d'élévation (II) erroné en raison de l'absence de séparation des signaux d'émission. Un angle d'élévation dont l'erreur est compensée et/ou un angle azimut dont l'erreur est compensée est déterminé au moyen d'une compensation.
(DE) Die Erfindung betrifft ein Verfahren zur Messung des Elevationswinkels (φΕ) und/oder Azimutwinkels (φΑ) mit einer Antennenanordnung, wobei die Antennenanordnung - wenigstens zwei Sendeantennen (Tx), die einen horizontalen und einen vertikalen Abstand (dTx, dTy) zueinander haben, - wenigstens vier Empfangsantennen (Rx), die einen horizontalen Abstand (dR) zueinander haben, - und eine monolithische Mikrowellenschaltung aufweist, wobei über die Sendeantenne (Tx) der Antennenanordnung im Zeitmultiplex gleiche Sendesignale gesendet werden, die aus aufeinanderfolgenden, linearfrequenzmodulierten Rampen bestehen, wobei der Zeitmultiplex durch ein abwechselndes Dämpfen der von den Sendeantennen (Tx) ausgesendeten Signale erreicht wird, wobei von den Empfangsantennen (Rx) Echos der Sendesignale empfangen werden, die in ein Basisband herabgemischt und abgetastet werden, wobei die herabgemischt und abgetasteten Echos mittels einer FFT in einen 2D-Bildbereich transformiert werden, wobei aus den Bilddaten Phasendifferenzen (Δφ1, Δφ2) bestimmt werden, und wobei zur Kompensierung eines wegen der fehlenden Trennung der beiden Sendesignale vorliegenden systematischen Fehlers - nach der Messung der Phasendifferenzen (Δφ1, Δφ2) oder - nach der Messung der Phasendifferenzen (Δφ1, Δφ2) und der Berechnung eines aufgrund der fehlenden Trennung der Sendesignale fehlerbehafteten Azimutwinkels (I) oder Elevationswinkels (II) aus den gemessenen Phasendifferenzen mittels einer Kompensation ein fehlerkompensierter Elevationswinkel und/oder ein fehlerkompensierter Azimutwinkel bestimmt wird.
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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: German (DE)
Filing Language: German (DE)