DE102019004108A1 - Method for echo generation in an actively measuring acquisition system - Google Patents
Method for echo generation in an actively measuring acquisition system Download PDFInfo
- Publication number
- DE102019004108A1 DE102019004108A1 DE102019004108.9A DE102019004108A DE102019004108A1 DE 102019004108 A1 DE102019004108 A1 DE 102019004108A1 DE 102019004108 A DE102019004108 A DE 102019004108A DE 102019004108 A1 DE102019004108 A1 DE 102019004108A1
- Authority
- DE
- Germany
- Prior art keywords
- echo generation
- actively measuring
- vehicle
- echo
- detection system
- 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.)
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Classifications
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- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/42—Simultaneous measurement of distance and other co-ordinates
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- 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
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/487—Extracting wanted echo signals, e.g. pulse detection
Abstract
Die Erfindung betrifft ein Verfahren zur Echogenerierung in einem aktiv messenden Erfassungssystem (1) eines Fahrzeuges zur Erfassung einer Fahrzeugumgebung. Erfindungsgemäß ist vorgesehen, dass eine Summation von Empfangssignalen (E) vor Durchführung einer Analyse der Empfangssignale (E) erfolgt, wobei die Summation in Abhängigkeit einer Schrittweite einer physischen Abtastgenauigkeit derart verschoben wird, dass der Analyse ein gleitendes Abtastfenster zugrunde gelegt wird.The invention relates to a method for echo generation in an actively measuring detection system (1) of a vehicle for detecting a vehicle environment. According to the invention, the reception signals (E) are summed before the reception signals (E) are analyzed, the summation being shifted as a function of a step size of a physical scanning accuracy such that the analysis is based on a sliding scanning window.
Description
Die Erfindung betrifft ein Verfahren zur Echogenerierung in einem aktiv messenden Erfassungssystem eines Fahrzeuges zur Erfassung einer Fahrzeugumgebung.The invention relates to a method for echo generation in an actively measuring detection system of a vehicle for detecting a vehicle environment.
Aus der
Der Erfindung liegt die Aufgabe zugrunde, ein gegenüber dem Stand der Technik verbessertes Verfahren zur Echogenerierung in einem aktiv messenden Erfassungssystem zur Erfassung einer Fahrzeugumgebung anzugeben.The invention is based on the object of specifying a method for echo generation which is improved compared to the prior art in an actively measuring detection system for detecting a vehicle environment.
Die Aufgabe wird erfindungsgemäß durch die in Anspruch 1 angegebenen Merkmale gelöst.The object is achieved by the features specified in
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Ein Verfahren zur Echogenerierung in einem aktiv messenden Erfassungssystem eines Fahrzeuges zur Erfassung einer Fahrzeugumgebung sieht erfindungsgemäß vor, dass eine Summation von Empfangssignalen vor Durchführung einer Analyse der Empfangssignale erfolgt, wobei die Summation in Abhängigkeit einer Schrittweite einer physischen Abtastgenauigkeit verschoben wird, so dass der Analyse ein gleitendes Abtastfenster zugrunde gelegt wird.According to the invention, a method for echo generation in an actively measuring detection system of a vehicle for detecting a vehicle environment provides that the reception signals are summed before the reception signals are analyzed, the summation being shifted as a function of a step size of a physical scanning accuracy, so that the analysis takes place sliding sampling window is used.
Durch Anwendung des Verfahrens kann eine weitere Stufe für eine Echodetektion erzeugt werden, welche eine geringere Größenauflösung, aber eine vergleichbare Positionsgenauigkeit wie eine grundlegende Echodetektion, jedoch mit einer höheren Reichweite des Erfassungssystems, aufweist.By using the method, a further stage for an echo detection can be generated, which has a lower size resolution, but a positional accuracy comparable to that of a basic echo detection, but with a greater range of the detection system.
Die Echodetektion wird also in einen Bereich mit geringerer Reichweite und vergleichsweise hoher Auflösung sowie hoher Genauigkeit und einen weiteren Bereich mit erhöhter Reichweite und reduzierter Auflösung unterteilt.The echo detection is therefore divided into an area with a shorter range and comparatively high resolution and high accuracy and a further area with an increased range and reduced resolution.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand einer Zeichnung näher erläutert.Exemplary embodiments of the invention are explained in more detail below with reference to a drawing.
Dabei zeigt:
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1 schematisch ein Blockschaltbild eines aktiv messenden Erfassungssystems zur Durchführung eines Verfahrens zur Echogenerierung.
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1 schematically shows a block diagram of an actively measuring detection system for performing a method for echo generation.
Die einzige Figur zeigt ein Blockschaltbild eines aktiv messenden Erfassungssystems
Ein solches aktives Erfassungssystem
Mit steigendem Automatisierungsgrad, steigender Verfügbarkeit solcher Fahrzeuge und auch einer steigenden Fahrgeschwindigkeit erhöhen sich die Anforderungen an die Erfassungssysteme
Um die Funktion des Erfassungssystems
Mittels des Erfassungssystems
Bevor eine Schwellwertbildung, insbesondere eine Analyse eines jeweiligen Empfangssignals
Wird nun die Summation in Schrittweiten der physischen Abtastgenauigkeit verschoben, wird der Analyse der Empfangssignale
Ein solches Verfahren kann mittels der Summation verschiedener Anzahlen von in den Empfangssignalen
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Erfassungssystem acquisition system
- Ee
- Empfangssignalreceive signal
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- EP 2041667 B1 [0002]EP 2041667 B1 [0002]
Claims (1)
Priority Applications (1)
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DE102019004108.9A DE102019004108A1 (en) | 2019-06-11 | 2019-06-11 | Method for echo generation in an actively measuring acquisition system |
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DE102019004108.9A DE102019004108A1 (en) | 2019-06-11 | 2019-06-11 | Method for echo generation in an actively measuring acquisition system |
Publications (1)
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DE102019004108A1 true DE102019004108A1 (en) | 2020-01-02 |
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DE102019004108.9A Withdrawn DE102019004108A1 (en) | 2019-06-11 | 2019-06-11 | Method for echo generation in an actively measuring acquisition system |
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DE (1) | DE102019004108A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2041667B1 (en) | 2006-07-07 | 2014-09-03 | Exelis Inc. | Method and apparatus for target discrimination within return signals |
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2019
- 2019-06-11 DE DE102019004108.9A patent/DE102019004108A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2041667B1 (en) | 2006-07-07 | 2014-09-03 | Exelis Inc. | Method and apparatus for target discrimination within return signals |
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Legal Events
Date | Code | Title | Description |
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R230 | Request for early publication | ||
R081 | Change of applicant/patentee |
Owner name: DAIMLER AG, DE Free format text: FORMER OWNER: DAIMLER AG, 70327 STUTTGART, DE |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |