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1. WO2019048110 - FMCW RADAR SENSOR HAVING SYNCHRONIZED HIGH-FREQUENCY MODULES

Publication Number WO/2019/048110
Publication Date 14.03.2019
International Application No. PCT/EP2018/068870
International Filing Date 12.07.2018
IPC
G01S 7/00 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
G01S 7/35 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
02of systems according to group G01S13/58
35Details of non-pulse systems
G01S 13/34 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
08Systems for measuring distance only
32using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
34using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
G01S 13/58 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
50Systems of measurement based on relative movement of target
58Velocity or trajectory determination systems; Sense-of-movement determination systems
G01S 13/87 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
87Combinations of radar systems, e.g. primary radar and secondary radar
G01S 7/40 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
02of systems according to group G01S13/58
40Means for monitoring or calibrating
CPC
G01S 13/343
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
08Systems for measuring distance only
32using transmission of continuous unmodulated waves, amplitude-, frequency- or phase-modulated waves
34using 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
343using sawtooth modulation
G01S 13/347
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
08Systems for measuring distance only
32using transmission of continuous unmodulated waves, amplitude-, frequency- or phase-modulated waves
34using 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
347using more than one modulation frequency
G01S 13/584
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
50Systems of measurement based on relative movement of target
58Velocity or trajectory determination systems; Sense-of-movement determination systems
583using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
584adapted for simultaneous range and velocity measurements
G01S 13/87
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
87Combinations of radar systems, e.g. primary radar and secondary radar
G01S 13/931
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
88Radar or analogous systems specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
G01S 2007/356
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
02of systems according to group G01S13/00
35Details of non-pulse systems
352Receivers
356involving particularities of FFT processing
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • MAYER, Marcel
  • BAUR, Klaus
  • SCHOOR, Michael
Priority Data
10 2017 215 561.205.09.2017DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) FMCW-RADARSENSOR MIT SYNCHRONISIERTEN HOCHFREQUENZBAUSTEINEN
(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
Abstract
(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.
(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).
Also published as
JP2020533346
MXMX/a/2020/002297
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