Robert Boschgmbh

Robert Bosch Gmbh

Marcel Mayer

Michael Schoor

Klaus Baur

Benedikt Loesch

Johannes Meyer

Andreas M Pietsch

Mehran Pourmousavi

Dirk Steinbuch

Thomas Schmidt

Raphael Hellinger

Andreas Kugler

Matthias Steinhauer

Juergen Seiz

Hartmut Kittel

Maik Hansen

Alexander Fischer

Jan Schnee

Osama Khan

Thomas Luhmann

A radar sensor head for a radar system, including: at least one transmitting antenna for generating, and at least one receiving antenna for receiving, radar waves; an interface for connecting the radar sensor head to a data lead; and an identification unit for identifying the radar sensor head, a downloading of calibration data of the sensor head to a central control apparatus being initiatable by way of the identification unit.

Radar sensor head for a radar system

A radar sensor is described. The radar sensor includes at least two synchronously operating high frequency components, which each have at least one signal path in which the phase of the transmitted high frequency signal is varied by a temperature-dependent phase difference. In each high frequency component, a phase detector is connected in parallel to the signal path, which supplies a signal that assumes an extremum at a certain phase difference independently of the temperature, and a phase shifter is situated in the signal path, ith the aid of which the phase difference is settable in such a way that the signal of the phase detector assumes the extremum.

Radar sensor including synchronized high frequency components

An evaluation device for at least one radar sensor having an electronic unit which is designed to evaluate measuring signals of the radar sensor. The radar sensor is designed in such a way that, during its measuring cycles, it emits radar signals and to receive radar signals reflected from an area surrounding the radar sensor and outputs signals corresponding to the received reflected radar signals as measuring signals, while the radar sensor remains inactive for a predetermined pause time between two successive measuring cycles. The electronic unit is designed to perform a Fourier transform utilizing measuring signals from at least two different measuring cycles and/or utilizing evaluation signals derived from the measuring signals from at least two different measuring cycles. A corresponding method for evaluating at least one radar sensor is also described.

Evaluation device and method for evaluating at least one radar sensor while pausing for heating of radar components

A method for operating a radar sensor system including multiple radar sensors operating independently of one another in a motor vehicle, wherein the radar sensors are synchronized with one another with respect to their transmission times and transmission frequencies in such a way that two radar signals whose frequency separation is smaller than a certain minimum frequency separation are at no point in time transmitted simultaneously.

Method for operating a radar sensor system in a motor vehicle

A radar system for a vehicle. The radar system has at least one central control unit for transmitting data and for processing received data, at least one radar sensor head, which is set apart from the central control unit and has at least one transmitting antenna for generating and at least one receiving antenna for receiving radar waves, and having at least one data line between the at least one central control unit and the at least one radar sensor head, with the at least one central control unit having a clock pulse generator for generating a reference frequency and the reference frequency being transmittable via the at least one data line to the at least one radar sensor head.

Radar system having a clock pulse generator integrated into a central control unit

A radar sensor system and a method for operating a radar sensor system. The radar sensor system includes: at least one first sub-sensor system and a second sub-sensor system, each for generating sensor data, each sub-sensor system including an antenna array including at least one receiving antenna and at least one transmitting antenna; a control device, by which each sub-sensor system is independently transferrable from a normal operation into a silent operation; and a data fusion device, which is designed to fuse the sensor data exclusively of the sub-sensor systems during the normal operation with one another for generating output data.

Radar sensor system and method for operating a radar sensor system

A device for emitting and receiving electromagnetic radiation, in which different antennas are used for the emitting and receiving, a first antenna or first group being used for the transmission in a first polarization form, a second antenna or second group being used for the transmission in a second polarization form, and a third antenna or third group being used for receiving the reflected electromagnetic radiation that was emitted by the first antenna or first group and by the second antenna or second group. The device may be fixed in place on a motor vehicle and used for object detection within the framework of a distance and speed control or a collision avoidance, and the polarimetric information obtained from the different receiving levels during the propagation of the two differently polarized electromagnetic waves via different propagation paths is able to be used for ascertaining a weather-related road condition.

Device for emitting and receiving electromagnetic radiation

A radar sensor system having a defined number of HF components, with each of the HF components having at least one antenna for transmitting and/or receiving of radar waves in each case, and at least one antenna control for operating the at least one antenna; and a synchronization network, which is connected to all HF components and via which an operating frequency of all HF components is able to be synchronized; with a synchronization master according to at least one defined criterion being able to be provided by all HF components.

A radar sensor head for a radar system. The radar sensor head includes at least one transmitting antenna for generating and at least one receiving antenna for receiving radar waves; a preprocessing unit for defined preprocessing of received data; an interface for connecting the radar sensor head to a data line; and a calibration data unit for at least partially calibrating the transmitting antenna and/or the receiving antenna, calibration data for the transmitting antenna and the receiving antenna being stored using the calibration data unit.

A method for calibrating two receiving units of a radar sensor that includes an array of receiving antennas formed by two sub-arrays and an evaluation unit, which is designed to carry out an angle estimation for located radar targets based on phase differences between the signals received by the receiving antennas, each receiving unit including parallel reception paths for the signals of the receiving antennas of one of the sub-arrays. The method includes: analyzing the received signals and deciding whether a multi-target scenario or a single-target scenario is present, in the case of a single-target scenario, measuring phases of the signals received in the sub-arrays and calculating a phase offset between the two sub-arrays, and calibrating the phases in the two receiving units based on the calculated offset.

Method for the phase calibration of high-frequency components of a radar sensor

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.

A radar sensor system for transmitting and receiving radar waves. The system includes a first sub-sensor having a first antenna and a first antenna control for operating the first antenna, and a second sub-sensor including a second antenna and a second antenna control for operating the second antenna. The system further includes a frequency-generating device having a clock pulse generator for generating a usable frequency and having a control unit for actuating and controlling the first antenna control, the second antenna control and the frequency-generating device, the frequency-generating device having a first clock pulse generator and a second clock pulse generator, the first clock pulse generator and the second clock pulse generator being able to be connected via at least two multiplexers to the first antenna control and the second antenna control for the supply of a usable frequency in each case.

Radar sensor system and method for supplying a frequency

A radar sensor system having a defined number of HF components, each HF component having at least one antenna for transmitting and/or receiving radar waves and at least one antenna control for operating the at least one antenna, and a synchronization network to which all HF components are functionally connected and via which an HF signal is able to be provided to all HF components. At least two HF components have a respective self-supply device for feeding back a defined share of power of the HF signal able to be fed into the synchronization network. The HF signal for all HF components being able to be generated by a defined HF component at a defined instant, the radar sensor system being able to be functionally subdivided into at least two sub-sensor systems.

A radar system for a vehicle, having at least one central control unit for transmitting data and for processing received data, at least one radar sensor head, which is set apart from the at least one central control unit and has at least one transmitting antenna for generating and at least one receiving antenna for receiving radar waves. The radar system includes at least one data line between the at least one central control unit and the at least one radar sensor head, with the at least one data line having at least one security unit for the encryption, decryption and/or signing of measuring data or control instructions.

Radar system having an encryptable data line

An FMCW radar sensor having a plurality of antenna elements at a distance from one another in a row, to each of which is assigned a mixer, which produces an intermediate frequency signal, and an evaluation unit that is designed to record the intermediate frequency signal over a measurement period as a function of time and to convert the time signal into a spectrum, and having an angular measuring device in which the spectra obtained from the evaluation devices are evaluated in separate channels. The sensor further including a beamforming device to carry out a beamforming for the signal received from a specified preferred direction by compensating run length differences of the signal to the antenna elements, a summation device forming a sum spectrum through coherent addition of the spectra, and a distance measuring device determining distances of objects in the preferred direction on the basis of the sum spectrum.

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Lonsee, Germany

Marcel Mayer