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1. WO2020141151 - METHOD FOR OPERATING A TESTING APPARATUS FOR TESTING A DISTANCE SENSOR OPERATING BY MEANS OF ELECTROMAGNETIC WAVES AND CORRESPONDING TESTING APPARATUS

Publication Number WO/2020/141151
Publication Date 09.07.2020
International Application No. PCT/EP2019/087125
International Filing Date 28.12.2019
IPC
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
G01S 7/497 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
48of systems according to group G01S17/58
497Means for monitoring or calibrating
G01S 13/931 2020.01
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
88Radar or analogous systems, specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
G01S 17/931 2020.01
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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems, specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
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
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 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
343using sawtooth modulation
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 17/931
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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
G01S 2007/4086
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
40Means for monitoring or calibrating
4052by simulation of echoes
4082using externally generated reference signals, e.g. via remote reflector or transponder
4086in a calibrating environment, e.g. anechoic chamber
G01S 2007/4095
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
40Means for monitoring or calibrating
4052by simulation of echoes
4082using externally generated reference signals, e.g. via remote reflector or transponder
4095the external reference signals being modulated, e.g. rotating dihedral reflector or modulating transponder for simulation of a Doppler echo etc.
G01S 2013/9323
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
9323Alternative operation using light waves
Applicants
  • DSPACE DIGITAL SIGNAL PROCESSING AND CONTROL ENGINEERING GMBH
Inventors
  • PAUL, Jeffrey
  • BERGEN, Ronald
Agents
  • GESTHUYSEN PATENT- UND RECHTSANWÄLTE
Priority Data
62/786,76731.12.2018US
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUM BETRIEB EINER PRÜFVORRICHTUNG ZUM TEST EINES MIT ELEKTROMAGNETISCHENWELLEN ARBEITENDEN ABSTANDSSENSORS UND ENTSPRECHENDE PRÜFVORRICHTUNG
(EN) METHOD FOR OPERATING A TESTING APPARATUS FOR TESTING A DISTANCE SENSOR OPERATING BY MEANS OF ELECTROMAGNETIC WAVES AND CORRESPONDING TESTING APPARATUS
(FR) PROCÉDÉ POUR FAIRE FONCTIONNER UN DISPOSITIF DE CONTRÔLE POUR TESTER UN CAPTEUR DE DISTANCE FONCTIONNANT AVEC DES ONDES ÉLECTROMAGNÉTIQUES ET DISPOSITIF DE CONTRÔLE CORRESPONDANT
Abstract
(DE)
Die Erfindung betrifft ein Verfahren (1) zum Betrieb einer Prüfvorrichtung (2) zum Test eines mit elektromagnetischen Wellen arbeitenden Abstandssensors (3), nämlich zur Erzeugung und Abstrahlung eines simulierten elektromagnetischen Reflexionssignals STX mit einer Reflexionsfrequenz ftx, wobei eine elektromagnetische Freiraumwelle als Empfangssignal SRX mit einer Empfangsfrequenz fRX und einer Signalbandbreite B empfangen wird und wobei das Reflexionssignal STX aus dem elektromagnetischen Empfangssignal SRX erzeugt wird, wobei die Reflexionsfrequenz fTX um eine Dopplerfrequenz fD gegenüber der Empfangsfrequenz fRX verschoben ist, wobei die Dopplerfrequenz fD kleiner ist als die Signalbandbreite B des Empfangssignals SRX. Die Aufgabe, ein Verfahren (1) so auszugestalten und weiterzubilden, dass es auf verhältnismäßig einfache Weise möglich ist, aus einem Empfangssignal SRX ein gewünschtes Reflexionssignal STX zu genieren, das um eine relativ kleine Dopplerfrequenz fD gegenüber dem Empfangssignal SRX frequenzmoduliert ist, ist dadurch gelöst, dass das Empfangssignal SRX in ein erstes Arbeitssignal S1 mit einer ersten Arbeitsfrequenz f1 umgesetzt wird, wobei die Arbeitsfrequenz f1 um eine Umsetzfrequenz fu kleiner ist als die Empfangsfrequenz fRX des Empfangssignals SRX, dass das erste Arbeitssignal S1 in ein zweites Arbeitssignal S2 mit einer zweiten Arbeitsfrequenz f2 umgesetzt wird, wobei der Betrag der Differenz aus der ersten Arbeitsfrequenz f1 und der zweiten Arbeitsfrequenz f2 mindestens so groß ist wie die Signalbandbreite B, vorzugsweise mindestens so groß ist wie die Summe aus der Signalbandbreite B und der Dopplerfrequenz fD, dass das zweite Arbeitssignal S2 in ein drittes Arbeitssignal S3 mit einer dritten Arbeitsfrequenz f3 umgesetzt wird, wobei die dritte Arbeitsfrequenz f3 der um die Dopplerfrequenz fD verschobenen ersten Arbeitsfrequenz f1 entspricht und dass das dritte Arbeitssignal S3 um die Umsetzfrequenz fu erhöht wird und so in das Reflexionssignal STX umgesetzt und abgestrahlt wird. Zudem betrifft die Erfindung eine entsprechende Prüfvorrichtung (2).
(EN)
The invention relates to a method (1) for operating a testing apparatus (2) for testing a distance sensor (3) operating by means of electromagnetic waves, specifically for generating and emitting a simulated electromagnetic reflection signal STX at a reflection frequency ftx, wherein an electromagnetic free-space wave is received as a received signal SRX at a received frequency fRX and a signal bandwidth B and wherein the reflection signal STX is generated from the electromagnetic received signal SRX, the reflection frequency fTX being shifted by a Doppler frequency fD relative to the received frequency fRX, the Doppler frequency fD being smaller than the signal bandwidth B of the received signal SRX. The problem of designing and developing a method (1) such that it is possible, in a relatively simple manner, to generate a desired reflection signal STX from a received signal SRX, said reflection signal being frequency-modulated by a relatively small Doppler frequency fD compared to the received signal SRX, is solved by the received signal SRX being converted to a first operating signal S1 having a first operating frequency f1, wherein the operating frequency f1 is smaller than the received frequency fRX of the received signal SRX by a conversion frequency fu, by the first operating signal S1 being converted to a second operating signal S2 having a second operating frequency f2, wherein the amount of the difference between the first operating frequency f1 and the second operating frequency f2 is at least as large as the signal bandwidth B, preferably at least as large as the sum of the signal bandwidth B and the Doppler frequency fD, by the second operating signal S2 being converted to a third operating signal S3 having a third operating frequency f3, wherein the third operating frequency f3 corresponds to the first operating frequency f1, shifted by the Doppler frequency fD, and by the third operating signal S3 being increased by the conversion frequency fu and thus being converted to the reflection signal STX and emitted. The invention furthermore relates to a corresponding testing apparatus (2).
(FR)
L’invention concerne un procédé (1) pour faire fonctionner un dispositif de contrôle (2) pour tester un capteur de distance (3) fonctionnant avec des ondes électromagnétiques, c'est-à-dire pour la génération et l'émission d’un signal de réflexion électromagnétique simulé STX ayant une fréquence de réflexion ftx, une onde électromagnétique d’espace libre étant reçue comme signal de réception SRX ayant une fréquence de réception fRX et une bande passante de signal B, et le signal de réflexion STX étant généré à partir du signal électromagnétique de réception SRX, la fréquence de réflexion fTX étant décalée d’une fréquence Doppler fD par rapport à la fréquence de réception fRX, la fréquence Doppler fD étant inférieure à la bande passante de signal B du signal de réception SRX. L’objectif de développer et de perfectionner un procédé (1) de telle façon qu’il soit possible de générer de manière relativement simple à partir d’un signal de réception SRX un signal de réflexion STX souhaité, qui est modulé en fréquence d’une fréquence Doppler fD relativement petite par rapport au signal de réception SRX, est atteint par la transformation du signal de réception SRX en un premier signal de travail S1 ayant une première fréquence de travail f1, la fréquence de travail f1 étant inférieure d’une fréquence de transformation fu à la fréquence de réception fRX du signal de réception SRX, par la transformation du premier signal de travail S1 en un deuxième signal de travail S2 ayant une deuxième fréquence de travail f2, la valeur de la différence entre la première fréquence de travail f1 et la deuxième fréquence de travail f2 étant au moins aussi grande que la bande passante de signal B, de préférence au moins aussi grande que la somme de la bande passante de signal B et de la fréquence Doppler fD, par la transformation du deuxième signal de travail S2 en un troisième signal de travail S3 ayant une troisième fréquence de travail f3, la troisième fréquence de travail f3 correspondant à la première fréquence de travail f1 décalée de la fréquence Doppler fD, et par l’augmentation du troisième signal de travail S3 de la fréquence de transformation fu pour le transformer en le signal de réflexion STX et son émission. L’invention concerne en outre un dispositif de contrôle (2) correspondant.
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