Abstract: A radar sensor system having at least one transmitter device, all transmitter devices having a total of at least two transmit channels; and at least one receiver device, with all receiver devices having a total of at least two receive channels; a temperature sensor in each case for sensing the temperatures of the at least one transmitter device and the at least one receiver device, a modeling device for modeling at least one temperature dependency of the at least one transmitter device from the at least one receiver device; and a compensation device for compensating for the modeled temperature dependency.

Abstract: A device for generating and/or processing a signal, and a method for ascertaining an adjustment of a device for processing or generating a signal. The method includes the steps: generating a transmission signal or a test signal with the aid of a signal device of a device; separating first signals, which come to the signal device from an interface device of the device, from second signals which come to the interface device from the signal device, the interface device being coupleable or coupled to a transmitting and/or receiving antenna; and outputting the first and the second signals separately from one another.

Abstract: A method for operating a radar sensor, having the steps: sending out a transmit signal; reception, by a receive unit, of the transmit signal reflected by at least one target object; evaluation of the receive signal; and regulation of a cutoff frequency of a high-pass filter as a function of the evaluated receive signal.

Abstract: A radar sensor system having at least one transmitter device, all transmitter devices having a total of at least two transmit channels; and at least one receiver device, with all receiver devices having a total of at least two receive channels; a temperature sensor in each case for sensing the temperatures of the at least one transmitter device and the at least one receiver device, a modeling device for modeling at least one temperature dependency of the at least one transmitter device from the at least one receiver device; and a compensation device for compensating for the modeled temperature dependency.

Abstract: A radar sensor for driver assistance systems in motor vehicles includes a transmitting and receiving device for transmitting and receiving radar signals, an electronic evaluation device for evaluating the received signals, an electronic control device for controlling the operating functions of the radar sensor, and a self-monitoring device for detecting operating parameters of the radar sensor and for comparing the detected parameters to specific setpoint values, where a control device modifies at least one of the operating parameters and a control circuit controls the parameter to the setpoint value thereof.

Abstract: An integrated radio-frequency circuit for a radar sensor, having a clock input that is designed to receive a clock signal produced externally to the integrated radio-frequency circuit, having a local oscillator that is designed to produce a local radio-frequency signal, having a radio-frequency input that is designed to receive an external radio-frequency signal produced externally to the integrated radio-frequency circuit, and having a changeover switch that is coupled to the local oscillator and to the radio-frequency input and is designed to change over between the local radio-frequency signal and the external radio-frequency signal for the production of a radar signal. In addition, a corresponding radar sensor and a corresponding operating method, are also described.

Abstract: A method for ascertaining operating data of a radar sensor, including transmitting defined data of a first subsequence of ramp signals to an RF component of the radar sensor; ascertaining the data of the remaining subsequences of the ramp signals from the defined values of the first subsequence with the aid of the RF component; and storing the ascertained data of the remaining subsequences in a first memory of the RF component.

Abstract: An electronic control unit for radar sensors, in particular for driver assistance systems in motor vehicles, including an integrated component for generating and processing high-frequency signals, and a controller for controlling functions of this component, including monitoring functions for monitoring the operability of the radar sensor, characterized by an error injector integrated into the component for generating defined error conditions for a functional test of the monitoring functions.

Abstract: A method is described for operating a radar device for a motor vehicle, the method comprising the following steps: Providing operating data of a HF unit of the radar device; Transmitting the operating data of the HF unit via a digital data bus to a microcomputer unit; and Evaluating the operating data of the HF unit with the aid of the microcomputer unit.

Abstract: A device including a receiving antenna on a circuit board and a radome, multiple reflections of the received signals between the radome and the receiving antenna being avoided by using a polarization-rotating structure on the circuit board. The device may in particular be an integral part of a distance controller for adaptive cruise control of a motor vehicle.

Abstract: A method for operating a radar sensor, having the steps: sending out a transmit signal; reception, by a receive unit, of the transmit signal reflected by at least one target object; evaluation of the receive signal; and regulation of a cutoff frequency of a high-pass filter as a function of the evaluated receive signal.

Abstract: A radar sensor for driver assistance systems in motor vehicles includes a transmitting and receiving device for transmitting and receiving radar signals, an electronic evaluation device for evaluating the received signals, an electronic control device for controlling the operating functions of the radar sensor, and a self-monitoring device for detecting operating parameters of the radar sensor and for comparing the detected parameters to specific setpoint values, where a control device modifies at least one of the operating parameters and a control circuit controls the parameter to the setpoint value thereof.

Abstract: A device for generating and/or processing a signal, and a method for ascertaining an adjustment of a device for processing or generating a signal. The method includes the steps: generating a transmission signal or a test signal with the aid of a signal device of a device; separating first signals, which come to the signal device from an interface device of the device, from second signals which come to the interface device from the signal device, the interface device being coupleable or coupled to a transmitting and/or receiving antenna; and outputting the first and the second signals separately from one another.

Abstract: An integrated radio-frequency circuit for a radar sensor, having a clock input that is designed to receive a clock signal produced externally to the integrated radio-frequency circuit, having a local oscillator that is designed to produce a local radio-frequency signal, having a radio-frequency input that is designed to receive an external radio-frequency signal produced externally to the integrated radio-frequency circuit, and having a changeover switch that is coupled to the local oscillator and to the radio-frequency input and is designed to change over between the local radio-frequency signal and the external radio-frequency signal for the production of a radar signal. In addition, a corresponding radar sensor and a corresponding operating method, are also described.

Abstract: A coupling structure for crossing three transmission lines millimeter-wave or centimeter-wave signals a signal conductor layer of a circuit substrate, the coupling structure comprising three planar cross-couplers, and from each of the three cross-couplers two input/output points of the cross-coupler being connected clockwise in succession in the plane of the cross-coupler, to respectively one input/output point of a respective other of the three cross-couplers.

Abstract: A radar sensor for vehicles, including a group antenna, having a linear array of antenna elements, a feed unit for feeding transmission signals having a settable phase relationship into the antenna elements, a control unit controlling the feed unit, and an evaluation device evaluating received radar echoes and angle-resolving locating of objects. The group antenna includes at least two non-interleaved subgroups, the feed unit supplies in-phase transmission signals to the elements, while the transmission signals for the various subgroups have a settable phase difference, the control unit periodically changes the settable phase difference so that the transmission signals have a base phase difference in one measuring cycle and a phase difference in another measuring cycle which differs by a fixed absolute value from the base difference. The control unit sets the base difference based on levels of the received radar echoes to maximize the level difference between the measuring cycles.

Abstract: An electronic control unit for radar sensors, in particular for driver assistance systems in motor vehicles, including an integrated component for generating and processing high-frequency signals, and a controller for controlling functions of this component, including monitoring functions for monitoring the operability of the radar sensor, characterized by an error injector integrated into the component for generating defined error conditions for a functional test of the monitoring functions.

Abstract: A method for ascertaining operating data of a radar sensor, including transmitting defined data of a first subsequence of ramp signals to an RF component of the radar sensor; ascertaining the data of the remaining subsequences of the ramp signals from the defined values of the first subsequence with the aid of the RF component; and storing the ascertained data of the remaining subsequences in a first memory of the RF component.

Abstract: A device including a receiving antenna on a circuit board and a radome, multiple reflections of the received signals between the radome and the receiving antenna being avoided by using a polarization-rotating structure on the circuit board. The device may in particular be an integral part of a distance controller for adaptive cruise control of a motor vehicle.

Abstract: A method is described for operating a radar device for a motor vehicle, the method comprising the following steps: Providing operating data of a HF unit of the radar device; Transmitting the operating data of the HF unit via a digital data bus to a microcomputer unit; and Evaluating the operating data of the HF unit with the aid of the microcomputer unit.