Abstract: Technologies and techniques for correcting a radar signal to determine a synthetic aperture. Data indicative of the radar signal is received, the radar signal having a sequence of echoes from a target region and being based on a sequence of transmission pulses. A movement of at least one target object in the target region is determined, and correction information for the radar signal is determined, based on the movement of the target object. An influence of the movement of the target object on the radar signal is reduced, based on the correction information to obtain a corrected radar signal.

Abstract: A method for acquiring information in the spatial environment of a vehicle, comprising: providing at least two radar sensors arranged at different positions at the vehicle; transmitting radar signals by the radar sensors, the radar signals being assigned to the radar sensors; receiving reflected components of the radar signals assigned to the radar sensors at the respective radar sensors and further processing these reflected components of the radar signals as reception information; assigning time information to the reception information obtained from the respective radar sensors, the time information forming a time reference for the reception information; assigning location information to the reception information obtained from the respective radar sensors, the location information forming a location reference for the reception information; and processing the reception information obtained from the at least two radar sensors into common environment information by taking into account the time information and

Abstract: Technologies and techniques for operating an electro-optical transmission device. An optical carrier signal is generated via an optical signal source of a base unit of the transmission device. An arbitrary signal is generated via the optical signal source, and the arbitrary signal is modulated onto the optical carrier signal in the base unit, forming a transmission signal. The transmission signal is transmitted to an antenna unit of the transmission device via an optical transmission medium, and the arbitrary signal and the carrier signal are separated in the antenna unit. Aspects also are directed to a computer program product and to a transmission device configured to perform such functions.

Abstract: System and method for operating a radar system that includes a plurality of antennas, wherein a respective antenna signal is received from each of the antennas and is converted into a digital antenna signal via an analog-to-digital conversion. Digital signal data of the antennas are provided in a data memory. Signal evaluation is performed in a two-stage design, where a predetermined subset of the signal data is supplied to an evaluation module for a target detection, and resolution cells for which, the associated resolution gate meets a predetermined occupancy criterion are selected, and only the signal data available in the data memory for the selected resolution cells are selected for these resolution cells for further processing.

Abstract: A method for classification of ground conditions in the vicinity of a vehicle using a radar sensor, comprising: receiving reflected portions of a radar signal at a receiver unit of a radar system; calculating information derived from the received portions of the radar signal for discrete spatial regions by the radar system or a control unit connected thereto; assigning the information to data structure units associated with a geographical location and the assignment of the information taking into account movement of the vehicle; collecting pieces of information in the respective data structure units, the pieces of information being obtained from reflected portions of radar signals transmitted at different times; evaluating the information contained in the data structure using a classifier to obtain information regarding the ground condition; assigning ground condition types to the data structure units based on evaluation results obtained by the classifier.

Abstract: A method for distance measurement by means of an active optical sensor system is disclosed, comprising: an initial pulse sequence with an initial frequency spectrum, which corresponds to a frequency comb, is generated using a laser source. Based thereon, a first pulse sequence and a first reference pulse sequence with a first frequency spectrum, which corresponds to a first part of the frequency comb, as well as a second pulse sequence and a second reference pulse sequence with a second frequency spectrum, which corresponds to a second part of the frequency comb, are generated. A first distance of the object is determined using a first heterodyne measurement based on the first reference pulse sequence and reflected portions of the first pulse sequence and a second distance is determined using a second heterodyne measurement based on the second reference pulse sequence and reflected portions of the second pulse sequence.

Abstract: A method for determining a quality of a surface in the surroundings of a transportation vehicle, wherein three-dimensional surface coordinates of the surface are generated using a sensor assembly. In the method, an approximation of the course of the curvature of the surface in at least one direction is obtained based on the surface coordinates and the surface coordinates are classified to characterize the quality of the surface using the course of the curvature and/or vertical distances of the approximation of the course of the curvature from the three-dimensional surface coordinates. A device for carrying out the method.

Abstract: A method for acquiring information in the spatial environment of a vehicle, comprising: providing at least two radar sensors arranged at different positions at the vehicle; transmitting radar signals by the radar sensors, the radar signals being assigned to the radar sensors; receiving reflected components of the radar signals assigned to the radar sensors at the respective radar sensors and further processing these reflected components of the radar signals as reception information; assigning time information to the reception information obtained from the respective radar sensors, the time information forming a time reference for the reception information; assigning location information to the reception information obtained from the respective radar sensors, the location information forming a location reference for the reception information; and processing the reception information obtained from the at least two radar sensors into common environment information by taking into account the time information and

Abstract: A method for automatically controlling a following vehicle. A leading vehicle is guided along an actual trajectory, and a desired trajectory is produced for the following vehicle. The actual trajectory of the leading vehicle is captured by the following vehicle, and a trajectory similarity is determined by comparing the captured actual trajectory of the leading vehicle and the produced desired trajectory of the following vehicle. Automatic control of the following vehicle along the desired trajectory is activated if the trajectory similarity exceeds a particular value. Also disclosed is a system for automatically controlling a following vehicle using a leading vehicle.

Abstract: A method for automatic control of at least one following vehicle wherein a scout trajectory is generated for a scout vehicle, which is guided along an actual trajectory, wherein the actual trajectory of the scout vehicle and environmental data of the scout vehicle are detected by sensors of the scout vehicle. A target trajectory is generated for the following vehicle and environmental data of the following vehicle are detected by sensors of the following vehicle. The scout trajectory and environmental data of the scout vehicle are transferred to the following vehicle and, if the detected actual trajectory and the generated target trajectory each have at least a certain trajectory similarity to the generated scout trajectory and if the environmental data of the following vehicle have at least a certain environmental data similarity to the environmental data of the scout vehicle, an automatic control of the following vehicle is activated.

Abstract: A method for classification of ground conditions in the vicinity of a vehicle using a radar sensor, comprising: receiving reflected portions of a radar signal at a receiver unit of a radar system; calculating information derived from the received portions of the radar signal for discrete spatial regions by the radar system or a control unit connected thereto; assigning the information to data structure units associated with a geographical location and the assignment of the information taking into account movement of the vehicle; collecting pieces of information in the respective data structure units, the pieces of information being obtained from reflected portions of radar signals transmitted at different times; evaluating the information contained in the data structure using a classifier to obtain information regarding the ground condition; assigning ground condition types to the data structure units based on evaluation results obtained by the classifier.

Abstract: A pressure ratio between a setpoint tire pressure and an actual tire pressure for a tire of a vehicle is ascertained by the following steps: Ascertaining a wheel load which is acting on the tire. Ascertaining a dynamic tire radius of the tire. Ascertaining the pressure ratio as a function of the wheel load and the dynamic tire radius.

Abstract: A method for determining a quality of a surface in the surroundings of a transportation vehicle, wherein three-dimensional surface coordinates of the surface are generated using a sensor assembly. In the method, an approximation of the course of the curvature of the surface in at least one direction is obtained based on the surface coordinates and the surface coordinates are classified to characterize the quality of the surface using the course of the curvature and/or vertical distances of the approximation of the course of the curvature from the three-dimensional surface coordinates. A device for carrying out the method.

Abstract: A method for automatic control of at least one following vehicle wherein a scout trajectory is generated for a scout vehicle, which is guided along an actual trajectory, wherein the actual trajectory of the scout vehicle and environmental data of the scout vehicle are detected by sensors of the scout vehicle. A target trajectory is generated for the following vehicle and environmental data of the following vehicle are detected by sensors of the following vehicle. The scout trajectory and environmental data of the scout vehicle are transferred to the following vehicle and, if the detected actual trajectory and the generated target trajectory each have at least a certain trajectory similarity to the generated scout trajectory and if the environmental data of the following vehicle have at least a certain environmental data similarity to the environmental data of the scout vehicle, an automatic control of the following vehicle is activated.

Abstract: A method and system for automatically controlling at least one following vehicle, where a scout trajectory is produced for a scout vehicle and the scout vehicle is guided along the scout trajectory. Scout environmental data are captured by scout sensors and a desired trajectory is produced for the following vehicle. Following vehicle environmental data are captured by following vehicle sensors. Reference trajectory data are produced based on the scout trajectory and reference environmental data are produced based on the scout environmental data. The reference trajectory data and the reference environmental data are transmitted to the following vehicle. A trajectory similarity is determined by a trajectory comparison of the desired trajectory produced and the transmitted reference trajectory data, an environment similarity is determined by an environmental data comparison of the captured following vehicle environmental data and the transmitted reference environmental data.

Abstract: A pressure deviation between a setpoint tire pressure and an actual tire pressure for a tire of a vehicle is determined by the following steps: Ascertaining a wheel load for the tire. Ascertaining a dynamic tire radius of the tire. Determining the pressure deviation as a function of the wheel load and the dynamic tire radius.

Abstract: In a method for self-positioning a vehicle in its environment, the environment is detected by means of an environmental sensor system, and a map is created in the first step during vehicle travel. In a second step, the environmental sensor system perceives features and compares them with the previously created map for self-positioning. In this case, the environmental sensor system is formed by a radar sensor system, wherein the radar sensor system ascertains reflection points to create the map, sorts-out nonstationary reflection points and only uses stationary reflection points, and for self-positioning the vehicle, the reflection points determined during travel are compared with those in the map in order to determine the position of the vehicle in the map.

Abstract: A device displaying information about an imminent takeover of manual control of a vehicle. The device includes a radio receiving apparatus and a controller, and a projection unit, a vibration unit or a display. The radio receiving apparatus receives the information by radio. The projection unit projects the information by lighting of the projection unit, while the vibration unit is activated by the device in accordance with the receipt of the information. The information is displayed on the display together with additional information.

Abstract: Regulation of a longitudinal acceleration of a main vehicle (10), particularly a truck, includes: detecting a driving behavior of vehicles traveling in front of a preceding vehicle that is traveling immediately in front of the main vehicle (10), regulating the longitudinal acceleration of the main vehicle (10) based on an evaluation of the driving behavior of the vehicles in such a way as to minimize energy consumption of the main vehicle (10).

Abstract: A method and a device for a vehicle configured for automatic longitudinal guidance. The method involves detecting a guide vehicle, the guide vehicle being a vehicle travelling directly in front of the vehicle; determining a current state from at least two states which describe a current reaction of the vehicle to the guide vehicle; and displaying the current state in animated form on a display.