EP4121792A1 - Verfahren zum betreiben eines radarsystems - Google Patents
Verfahren zum betreiben eines radarsystemsInfo
- Publication number
- EP4121792A1 EP4121792A1 EP21709932.4A EP21709932A EP4121792A1 EP 4121792 A1 EP4121792 A1 EP 4121792A1 EP 21709932 A EP21709932 A EP 21709932A EP 4121792 A1 EP4121792 A1 EP 4121792A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radar
- adaptation
- radar sensors
- evaluation
- sensors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using 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
- G01S13/343—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using 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 using sawtooth modulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using 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
- G01S13/345—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using 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 using triangular modulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93275—Sensor installation details in the bumper area
Definitions
- the invention relates to a method for operating a radar system.
- radar systems are used, inter alia, in vehicles in order to monitor the surroundings of the vehicle.
- Such radar systems can have at least one radar sensor, which are operated in a network.
- the radar sensors enable the detection of target objects in the vicinity.
- the computing power of the flardware used for signal processing is often limited, so that the computing complexity of the signal processing has to be reduced.
- the increasing use of radar systems in road traffic can lead to mutual interference between the radar sensors of different vehicles. These disturbances, such as interference, can significantly impair the functionality of the radar systems.
- the object is achieved in particular by a method for operating a radar system with at least two radar sensors.
- a method for operating a radar system with at least two radar sensors In particular, it is provided that the following steps are carried out, preferably one after the other in the order specified or in any order, with individual and / or all steps also being able to be carried out repeatedly:
- Carrying out a signal transmission at the radar sensors in order to transmit at least one radar signal (by the radar sensors), preferably by at least one transmitting antenna of the respective radar sensor, in particular in the form of an electromagnetic signal, transmitted to an environment outside the radar sensor,
- a disturbance evaluation in order to detect at least one disturbance in each case on the basis of the respective detection information in the radar sensors, whereby the disturbance evaluation can preferably be carried out centrally for all of the detection information or individually for the respective detection information in the respective radar sensors, Providing at least one or at least two or at least four or at least six adaptation option (s) to avoid the at least one detected disturbance by adapting the signal transmission,
- the radar signal for each radar sensor can be transmitted - as a transmission signal s (t) - by at least one transmission antenna of the radar sensor.
- Each transmission signal s (t) can include a plurality of frequency-modulated ramps (chirps), which are also referred to below as partial signals.
- the transmitted signal s (t) reflected on a target object and delayed by a signal propagation time t can be received as a received signal e (t) at at least one receiving antenna of the radar sensor.
- f b is dependent on the signal propagation time t and thus on the distance R of the target object.
- the disturbance occurs in the manner of an interference, though two radar systems transmit at the same time in the same frequency range (in close proximity to each other).
- the disturbance can primarily relate to interference from an external radar system.
- further measures can also be provided.
- the radar signals from different radar sensors are transmitted with a time offset to one another or in different frequency ranges.
- the temporal arrangement can take place in several predefined time windows (acquisition slots).
- the disturbance in the form of an external interference can also be arranged in this frequency-time space.
- the arrangement of the disturbance can e.g. B. can be determined by the fault evaluation.
- the arrangement of the radar signals in the frequency-time space can be adapted in order to avoid the interference therein.
- the interferers can be avoided in a targeted manner in the frequency-time space by delayed transmission and / or a change in the center frequency of the radar signals.
- Each adaptation option can represent a different parameterization of the delay and / or the center frequency, which is suitable for avoiding the disturbance.
- the radar signals must be adjusted in a synchronized manner. An adaptation of the arrangement in the frequency-time space for the radar signal of one of the radar sensors then results in an adaptation of the arrangement for the radar signal of the other radar sensors in the same way.
- the radar sensors can no longer independently decide on their best avoidance strategy in the frequency-time space. For example, all radar sensors must apply the same time delay to the transmission signal in order to be able to continue to operate synchronously without overlapping.
- the best evasive strategy must be coordinated in particular with all radar sensors in the network, since a time delay in the transmission signal can have different effects for each radar sensor, depending on the interference scenario.
- Each radar sensor can have a different field of view and thus be influenced by different interferences.
- the following steps can be provided in order to evaluate the at least one and, in particular, several adaptation option (s), each in the manner of an adaptation strategy, during the evaluation by the individual radar sensors.
- a maximum delay duration can be defined as tx deiayMax and divided into N tx delay steps. Each of these delay steps then corresponds to an adjustment option.
- Each radar sensor of the radar system can evaluate the effects of each of the N tx possible delay steps on the basis of a position of the at least one detected fault in the frequency-time space that is predicted by the fault evaluation and can store the N tx evaluation results.
- the N tx evaluation results can then be transmitted to all other radar sensors of the radar system during the tuning.
- the evaluation results of all other radar sensors are then available to each radar sensor.
- the adaptation of the signal transmission can then take place in such a way that the ideal delay step is selected as the adaptation option, which leads to the best result for all radar sensors.
- an interference value is determined as a function of the detected interference during the evaluation for each adaptation option, for example for each potential position of a chirp sequence in the frequency-time space or for each potential time window.
- This interference value can e.g. B. can be determined as a degree of influencing the interference on the radar signal when adapting according to the adaptation option.
- the interference value thus represents a measure of the effect of the adaptation option for the respective radar sensor.
- An interference value for a radar sensor is e.g. B. proportional to the overlap of the interference and the radar signal of this radar sensor when the radar signal at the potential position is accepted according to the adjustment option.
- the interference value is therefore available for each adaptation option.
- the interference values for the various radar sensors can then be added for each adaptation option, the interference values of different radar sensors possibly being weighted differently. If necessary, a radar sensor that is in a critical scenario from the point of view of functional safety (FUSA) can be given a higher weighting.
- the ideal adaptation option e.g. B. the ideal time window can be determined, which leads to the best result for all radar sensors. For example, a minimum search for summation is also conceivable.
- other approaches to the selection of the customization option can also be taken, e.g. B. a combination with a criterion that no radar sensor may have the highest interference value.
- the transmission of the radar signals and / or the signal processing and / or the interference evaluation and / or the evaluation is carried out independently by each of the radar sensors, that is to say independently of the other radar sensors.
- the signal processing and / or the fault evaluation and / or the evaluation is thus carried out by the radar sensors only on the basis of the respective detection information of this radar sensor.
- a radar sensor does not yet take into account the detection information from the other radar sensors. Only in the step of tuning can the results of these steps of the other radar sensors also be taken into account for a radar sensor. From the first radar sensor z. B.
- a first detection information is determined, so that the signal processing and / or the fault evaluation and / or the assessment can only be carried out on the basis of the first detection information for the first radar sensor.
- a second detection information is determined, so that the signal processing and / or the interference evaluation and / or the assessment can only be carried out on the basis of the second detection information for the second radar sensor. Only when the vote will both the result of the evaluation of the first radar sensor and the second radar sensor are taken into account.
- the radar sensors may also be operated in a synchronized manner in order to transmit the at least one radar signal in a synchronized manner when the signal is transmitted, so that the radar signals of the different radar sensors are transmitted with a time offset and / or frequency offset (i.e. offset with respect to a center frequency) to one another.
- the radar signals of the different radar sensors are transmitted at least partially in parallel in time and offset in a frequency-time space in such a way that partial signals of the radar signals, in particular frequency-modulated ramps, are transmitted without overlapping in terms of frequency.
- the method according to the invention can be used to avoid interference between synchronized radar sensors (in particular of a vehicle) and external radar sensors.
- the synchronized radar sensors thus form a sensor network in order to avoid interference between the radar sensors. This is particularly useful when several radar sensors are used to monitor an environment, e.g. B. on different sides of a vehicle.
- the radar signal includes e.g. B. several sequentially output signal sequences (also referred to as chirps or frequency modulation ramps).
- the chirps can each be frequency-modulated and thus have a varying frequency.
- a linear frequency modulation is used, in which the frequency changes linearly within a predetermined bandwidth for a respective chirp.
- Interference can occur if two radar systems (in close proximity to one another), in particular different vehicles, transmit at the same time in the same frequency range.
- the interference signal can occur in the time domain in the form of a peak value (peak) in the baseband signal b (t) and thus lead to an increase in a spectrum A (J) of the baseband signal b (t) in the frequency domain.
- the detection information can be determined for the respective radar sensors on the basis of the received signal e (t), and in particular on the basis of the baseband signal b (t).
- the detection information results from the digitized baseband signal b (t) or from a frequency analysis of the baseband signal b (t).
- the detection information can be digital information, that is to say data values. If a sequence of N chirps is output for a radar signal, then the duration of a respective chirp is T1 / N. After the period T 1, the acquisition information can be processed within the period T2-T1.
- the entire measurement cycle thus has a duration T2, so that the transmission of the radar signal s (t) can be repeated at intervals of T2.
- T2 thus defines a radar signal distance.
- Different transmission signals s1 (t) and s2 (t) can be sent out by the different radar sensors.
- B. differ with regard to a start time for T1.
- the adaptation of the signal transmission carries out at least one of the following adaptations: According to at least a first of the at least one adaptation option, an adaptation of a frequency range in which the radar signals are transmitted, in particular by changing a center frequency of the radar signals, according to at least one second of the at least one adaptation option an adaptation of a time delay with which the radar signals are transmitted, in particular by adapting a start time of the radar signals, e.g. B. for T 1.
- a plurality of first and / or second adaptation options can also be provided, each of which defines different parameters for the time delay (such as different starting times and / or time windows) and / or center frequency.
- the evaluation is used to determine the effect of these parameters for the respective individual radar sensors, i.e. the individual effect for the radar sensors.
- the overall impact for all radar sensors can then be considered. Since a freely variable definition of the center frequency and / or the delay does not make sense in a network of radar sensors, the coordination of the radar sensors is carried out in order to improve the overall effect of the adaptation.
- the adaptation of the signal transmission is carried out in the same way for all radar sensors.
- a time delay with which the radar signals are transmitted to avoid interference is adapted to the same extent for all radar sensors.
- a result of the malfunction evaluation is used as a prognosis of a malfunction in the detection information.
- the advantage that can be achieved here is that the malfunction evaluation - for example through the use of a neural network and / or the consideration of previous malfunction evaluations - enables a more reliable and possibly faster detection of the malfunction. This can be due to the fact that not (only) a current fault is recognized, but the fault evaluation even enables the fault to be prognosticated.
- the malfunction evaluation can be carried out in such a way that a recurring course and / or a recurring pattern and / or a temporal correlation of the malfunction is recognized in the detection information on the basis of the previous malfunction evaluations.
- the neural network can thus be able to do this if there is a temporal link between Neurons in the sense of feedback loops (as in a recurrent neural network).
- time-coded information can be determined in the detection information which is specific for the disturbance and therefore also enables a prognosis of the disturbance.
- detection information from previous detection cycles of the radar system can possibly also be taken into account in the malfunction evaluation.
- the disturbance evaluation includes an application of a neural network in order to provide a prognosis of the disturbance in the manner that the neural network an indication of a disturbance frequency range takes place in which the disturbance will be present in the future.
- the disturbance can thus be reliably characterized using the frequency range.
- previously determined acquisition information can be used as training data in which the frequency range for a disturbance is manually identified.
- the acquisition information can then be used as training data for training such that the acquisition information that preceded the acquisition information with the manually marked frequency range (i.e. the ground truth) is used as input in order to predict the future presence of the disturbance in this way.
- the disturbance evaluation is carried out on the basis of the detection information of a current detection cycle of the radar systems in order to obtain, as a result of the disturbance evaluation, an indication of a disturbance frequency range in which the disturbance is predicted in a detection cycle following the current detection cycle, being preferably the adjustment the signal transmission comprises an automatic at least partial adaptation of the frequency range of the radar signals so that the radar signals are transmitted in a frequency range which is at least partially outside the predicted interference frequency range.
- the radar signals can be transmitted in the frequency range which is at least partially outside the predicted interference frequency range.
- the at least one frequency range can thus be designed as an at least partially variable frequency range. This enables the interference to be reliably reduced since the interference frequency range is bypassed.
- the fault evaluation is carried out separately and in particular autarkically for the detection information from different radar sensors, and a result of the evaluation of each of the radar sensors is used in the coordination. This means that the overall effect on the entire radar system can be taken into account during the adjustment.
- carrying out the evaluation of the at least one adaptation option for each of the radar sensors includes the following step:
- the result of the evaluation can be transmitted to the other radar sensors (e.g. when voting).
- the radar system is part of a vehicle.
- the vehicle is z. B. a passenger vehicle and / or a truck which can provide at least one vehicle function, such as a driver assistance system, by means of the radar system.
- the radar sensors each have a processing device for performing at least the assessment and / or that the radar system is designed to detect at least one target object in the vicinity of the radar system, in particular a vehicle, the radar system having the at least two radar sensors for different areas of the environment.
- the radar system has at least four radar sensors or at least six radar sensors.
- the at least one neural network comprises at least one convolutional neural network (CNN), which preferably receives the detection information as input and whose output is used as input for the recurrent neural network.
- CNN convolutional neural network
- the CNN z. B. learned with training data, which is composed of input data (input) and the associated output data (output).
- the output data can contain the correct output that is expected for the associated input data.
- the input data are e.g. B. the unchanged acquisition information and the output data a reduced (scaled) version of the acquisition information or an identification of the fault. In this way the CNN is trained to provide an optimized input for the RNN as an output.
- FIG. 2 shows a schematic representation of a vehicle with a radar system in a top view
- FIG. 5 shows a schematic representation of an adaptation of the signal transmission according to an adaptation option
- FIG. 6 shows a further schematic illustration of an adaptation of the signal transmission according to a further adaptation option
- FIG. 7 shows a further schematic illustration of an adaptation of the signal transmission according to a further adaptation option
- FIG. 8 shows a schematic visualization of method steps.
- a radar system 2 of a vehicle 1 is shown schematically in FIG. 1, in which a plurality of radar sensors 21, 22, 23 are each provided with a processing device 3. Further radar sensors 24, 25, 26 of the radar system 2 are shown schematically in FIG.
- the processing devices 3 can each serve to carry out steps of a method according to the invention for operating the radar system 2 with the at least two radar sensors 21, 22, 23, 24, 25, 26 to be carried out.
- the processing devices 3 are designed for this purpose as electronic data processing devices which have at least one processor for carrying out the method steps.
- the processing devices 3 can be in data connection with one another, in particular in order to exchange a result of an assessment 104 with one another.
- the radar sensors 21, 22, 23, 24, 25, 26 can be operated in a synchronized manner in order to transmit the at least one radar signal 211, 212, 213, 214, 215, 216 in a synchronized manner when the signal is transmitted 101, so that the radar signals 211, 212, 213, 214, 215, 216 of the different radar sensors 21, 22, 23, 24, 25, 26 are transmitted with a time offset and / or frequency offset with respect to one another.
- a first 211, a second 212, a third 213 and a fourth radar signal 214 are shown here by way of example in the frequency-time space 250 (i.e.
- the radar signals 211, 212, 213, 214, 215, 216 of the different radar sensors 21, 22, 23, 24, 25, 26 are at least partially temporally parallel and offset in this way in the frequency-time space 250 sent out that partial signals 241 of the radar signals 211, 212, 213, 214, 215, 216, in particular frequency-modulated ramps, are transmitted without overlap with regard to the frequency f.
- the partial signals 241 are also shown with their frequency f, the continuous line representing the partial signal 241 of the first and third radar signals 211, 213 and the dashed line for the partial signal 241 of the second and fourth radar signals 212, 214.
- the alternating transmission of the partial signals 241 of the different radar signals 211, 213 and 212, 214 is illustrated.
- the different radar signals 211, 213 or 212, 214 are thus transmitted with a time offset from one another.
- 212 and 213, 214 are also provided with a frequency offset from one another. This ensures that none of the partial signals 241 overlap in terms of frequency during the signal transmission 101.
- FIG. 4 shows a disturbance 251 which occupies a certain range in the frequency-time space 250.
- the overlap with the radar signals 211, 212 is clear. This makes it necessary to adapt the radar signals 211, 212 in the frequency-time space 250. For the sake of simplicity, this is considered below only taking into account the first two radar signals 211, 212. According to FIG.
- the adaptation 106 of the signal transmission 101 according to a first of the at least one adaptation option 110 can include an adaptation of a frequency range in which the radar signals 211, 212 are transmitted, in particular by changing a center frequency of the radar signals 211, 212 the adaptation 106 of the signal transmission 101 according to a second of the at least one adaptation option 110 include an adaptation of a time delay with which the radar signals 211, 212 are transmitted, in particular by adapting a start time of the radar signals 211, 212 Figure 7 shown. This would be evaluated positively by the first radar sensor 21 for the first radar signal 211, but would continue to result in a disturbance for the second radar sensor 22 for the second radar signal 212.
- the tuning 105 accordingly leads to the adaptation option 110 shown in FIG. 6, ie the corresponding delay, being preferred.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020107372.0A DE102020107372A1 (de) | 2020-03-18 | 2020-03-18 | Verfahren zum Betreiben eines Radarsystems |
| PCT/EP2021/055171 WO2021185566A1 (de) | 2020-03-18 | 2021-03-02 | Verfahren zum betreiben eines radarsystems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4121792A1 true EP4121792A1 (de) | 2023-01-25 |
Family
ID=74858413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21709932.4A Pending EP4121792A1 (de) | 2020-03-18 | 2021-03-02 | Verfahren zum betreiben eines radarsystems |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230016195A1 (de) |
| EP (1) | EP4121792A1 (de) |
| CN (1) | CN115244418A (de) |
| DE (1) | DE102020107372A1 (de) |
| WO (1) | WO2021185566A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022123718B4 (de) * | 2022-09-16 | 2025-09-18 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Betreiben eines Radarsystems in Störungssituationen, Radarsystem und damit ausgestattetes Kraftfahrzeug |
| DE102022123720A1 (de) * | 2022-09-16 | 2024-03-21 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum gesamtheitlich optimierten Betreiben eines Radarsystems und zugehöriges Radarsystem, Kraftfahrzeug und Servereinrichtung |
| DE102022127989A1 (de) | 2022-10-24 | 2024-04-25 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Detektionsvorrichtung mit Störungsbehandlung unter Verwendung eines künstlichen neuronalen Netzwerks |
| DE102022214067A1 (de) * | 2022-12-20 | 2024-06-20 | Zf Cv Systems Global Gmbh | Verfahren und System zum Betreiben eines Radarsystems |
| DE102023202482A1 (de) * | 2023-03-21 | 2024-09-26 | Zf Friedrichshafen Ag | Steuerungssystem und Verfahren zum Betreiben eines Kraftfahrzeugs |
| DE102023207597A1 (de) * | 2023-08-08 | 2025-02-13 | Robert Bosch Gesellschaft mit beschränkter Haftung | Antennenarray für einen Radarsensor |
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| DE10059673A1 (de) * | 2000-12-01 | 2002-06-06 | Bosch Gmbh Robert | Impuls-Radarverfahren sowie Impuls-Radarsensor und System |
| US6940827B2 (en) * | 2001-03-09 | 2005-09-06 | Adaptix, Inc. | Communication system using OFDM for one direction and DSSS for another direction |
| WO2010139843A1 (en) * | 2009-06-05 | 2010-12-09 | Nokia Corporation | Cognitive radio transmission |
| US9223009B1 (en) * | 2011-12-19 | 2015-12-29 | Lockheed Martin Corporation | Method and system for electromagnetic interference (EMI) mitigation using an auxiliary receiver |
| US9532245B2 (en) * | 2012-05-10 | 2016-12-27 | Broadcom Corporation | Enhancement of in-device interference |
| DE102013210256A1 (de) | 2013-06-03 | 2014-12-04 | Robert Bosch Gmbh | Interferenzunterdrückung bei einem fmcw-radar |
| JP2015224899A (ja) * | 2014-05-26 | 2015-12-14 | 株式会社デンソー | 車載レーダ装置 |
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| US10379201B2 (en) * | 2016-10-26 | 2019-08-13 | GM Global Technology Operations LLC | Radar interference mitigation and collaborative operation |
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| US11175376B2 (en) * | 2018-09-18 | 2021-11-16 | Infineon Technologies Ag | System and method for determining interference in a radar system |
| US11310676B2 (en) * | 2019-04-23 | 2022-04-19 | Spectrum Effect Inc. | Methods for mitigating interference and maximizing capacity for time division duplex cellular networks |
-
2020
- 2020-03-18 DE DE102020107372.0A patent/DE102020107372A1/de active Pending
-
2021
- 2021-03-02 WO PCT/EP2021/055171 patent/WO2021185566A1/de not_active Ceased
- 2021-03-02 EP EP21709932.4A patent/EP4121792A1/de active Pending
- 2021-03-02 CN CN202180020675.0A patent/CN115244418A/zh active Pending
-
2022
- 2022-09-19 US US17/947,832 patent/US20230016195A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20230016195A1 (en) | 2023-01-19 |
| CN115244418A (zh) | 2022-10-25 |
| DE102020107372A1 (de) | 2021-09-23 |
| WO2021185566A1 (de) | 2021-09-23 |
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