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1. (WO2019048110) FMCW RADAR SENSOR HAVING SYNCHRONIZED HIGH-FREQUENCY MODULES
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Pub. No.: WO/2019/048110 International Application No.: PCT/EP2018/068870
Publication Date: 14.03.2019 International Filing Date: 12.07.2018
IPC:
G01S 7/00 (2006.01) ,G01S 7/35 (2006.01) ,G01S 13/34 (2006.01) ,G01S 13/58 (2006.01) ,G01S 13/87 (2006.01) ,G01S 7/40 (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
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
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
50
Systems of measurement based on relative movement of target
58
Velocity or trajectory determination systems; Sense-of-movement determination 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
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
87
Combinations of radar systems, e.g. primary radar and secondary 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
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
02
of systems according to group G01S13/58
40
Means for monitoring or calibrating
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:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
MAYER, Marcel; DE
BAUR, Klaus; DE
SCHOOR, Michael; DE
Priority Data:
10 2017 215 561.205.09.2017DE
Title (EN) FMCW RADAR SENSOR HAVING SYNCHRONIZED HIGH-FREQUENCY MODULES
(FR) CAPTEUR RADAR À MODULATION DE FRÉQUENCE D’ONDES ENTRETENUES (FMCW) POURVU DE MODULES À HAUTE FRÉQUENCE SYNCHRONISÉS
(DE) FMCW-RADARSENSOR MIT SYNCHRONISIERTEN HOCHFREQUENZBAUSTEINEN
Abstract:
(EN) The invention relates to an FMCW radar sensor comprising a plurality of high-frequency modules (10, 12), which are synchronized with one another by a synchronization signal (sync) and of which at least one has a transmitting part (16) for generating a modulated-frequency transformation signal (TX), and of which at least two high high-frequency modules (10, 12) that are separated physically from one another each have a receiving part (20) for receiving a radar echo (E), each receiving part (20) being assigned a mixer (22), which generates an intermediate-frequency signal (Z1, Z2) by mixing the received signal (RX) with a proportion of the transmitted signal (TX), and an evaluation unit (24, 34), and the evaluation unit (24, 34) being designed to record the intermediate-frequency signal (Z1, Z2) over a measurement period as a function of time and to subject the time signal (S1, S2) that is obtained to a Fourier transformation, characterized in that at least one (34) of the evaluation units is designed to window the time signal (S1) with a complex-value window function (V) before the Fourier transformation in order to compare a propagation time difference of the synchronization signal (sync) between the receiving parts (20).
(FR) L’invention concerne un capteur radar à modulation de fréquence d’ondes entretenues (FMCW) pourvu de plusieurs modules à haute fréquence (10, 12) qui sont synchronisés ensemble par un signal de synchronisation (sync) et dont au moins un comporte une partie émettrice (16) destinée à émettre un signal d’émission (TX) dont la fréquence est modulée, et dont au moins deux modules à haute fréquence (10, 12) spatialement séparés l’un de l’autre comportent respectivement une partie réceptrice (20) destinée à recevoir un écho radar (E), un mélangeur (22) qui émet un signal de fréquence intermédiaire (Z1, Z2) en mélangeant le signal reçu (RX) à une partie du signal d’émission (TX) et une unité d’estimation (24, 34) étant associés à chaque partie réceptrice (20) et l’unité d’estimation (24, 34) étant conçue de manière à enregistrer le signal de fréquence intermédiaire (Z1, Z2) durant une période de mesure en fonction du temps et à soumettre le signal de temps (S1, S2) ainsi obtenu à une transformation de Fourier, ledit capteur radar FMCW étant caractérisé en ce qu’au moins une (34) des unités d’estimation est conçue de manière à encadrer le signal de temps (S1) avec un fenêtrage (V) à valeurs complexes avant la transformation de Fourier pour comparer une différence de temps de propagation du signal de synchronisation (sync) entre les parties réceptrices (20).
(DE) FMCW-Radarsensor mit mehreren Hochfrequenzbausteinen (10, 12), die durch ein Synchronisationssignal (sync) miteinander synchronisiert sind und von denen mindestens einer einen Sendeteil (16) zum Erzeugen eines in seiner Frequenz modulierten Sendesignals (TX) aufweist, und von denen mindestens zwei räumlich voneinander getrennte Hochfrequenzbausteine (10, 12) jeweils einen Empfangsteil (20) zum Empfang eines Radarechos (E) aufweisen, wobei jedem Empfangsteil (20) ein Mischer (22), der durch Mischen des empfangenen Signals (RX) mit einem Anteil des Sendesignals (TX) ein Zwischenfrequenzsignal (Z1, Z2) erzeugt, und eine Auswerteeinheit (24, 34) zugeordnet sind und die Auswerteeinheit (24, 34) dazu ausgebildet ist, das Zwischenfrequenzsignal (Z1, Z2) über eine Messperiode als Funktion der Zeit aufzuzeichnen und das so erhaltene Zeitsignal (S1, S2) einer Fouriertransformation zu unterziehen, dadurch gekennzeichnet, dass mindestens eine (34) der Auswerteeinheiten dazu ausgebildet ist, zum Ausgleich eines Laufzeitunterschieds des Synchronisationssignals (sync) zwischen den Empfangsteilen (20), das Zeitsignal (S1) vor der Fouriertransformation mit einer komplexwertigen Fensterfunktion (V) zu fenstern.
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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)