Abstract: A low phase noise radar system is disclosed. The system has a signal generator having a stable oscillator that outputs a first lower-frequency signal, a direct digital synthesis circuit that outputs an analog waveform, and a mixer to receive the first lower-frequency signal, and the analog waveform, the mixer to mix the first lower-frequency signal and the analog waveform to generate a signal generator output signal. The system further includes an up converter coupled with the signal generator to filter and to increase frequencies of the signal generator output signal to generate a filtered and frequency multiplied signal to be transmitted.

Abstract: A radar system comprises a plurality of transmit antennas that transmit a radar signal toward a target, wherein each transmit antenna transmits its signal using a different space-time block code in a given transmission time slot. In one embodiment, no two transmit antennas transmit using the same space-time block code in the same transmission time slot.

Abstract: A radar system comprises a plurality of transmit antennas that transmit a radar signal toward a target, wherein respective transmit antennas are assigned a transmitter-specific phase offset via which the radar signal is modulated, and wherein respective phase offsets correspond to an offset in velocity of a target. The system further comprises a plurality of receive antennas that receive comprising transmitted signals reflected by the target, and one or more processors configured to determine whether a peak signal is present for respective transmitted signals reflected by the target, the peak signals corresponding to perceived velocities at which the target is moving.

Abstract: A radar system is configured to transmit via transmit antenna a digitally modulated carrier signal in successive transmission frames using different frequency subbands for each transmission frame, such that contiguous transmission frames do not use the same frequency subband. A receive antenna is configured to receive a radar return signal reflected by a target on a frequency subband used by the transmit antenna in the immediately preceding transmission frame so that the transmit antenna and the receive antenna use different subbands in a given transmission frame.

Abstract: The disclosure relates to a doppler division multiplexing (DDM) multiple input multiple output (MIMO) radar system. Example embodiments include a DDM MIMO radar system (400) comprising: a transmitter (401) connected to a plurality of transmitter antennas (4021-N) via a corresponding plurality of signal paths (4031-N) of different electrical lengths (L1-N) such that a phase of a signal transmitted by the transmitter (401) is different at each of the plurality of transmitter antennas (4021-N).

Abstract: Various technologies described herein pertain to a radar sensor system including a signal generator that generates a clock signal, start of modulation signal, and local oscillator signal. The radar sensor system includes first and second radar chips. The first radar chip synchronizes a first clock engine in frequency based on the clock signal and the first clock engine in time based on the start of the modulation signal. The first radar chip provides a first radar signal based on the local oscillator signal; the first radar signal is synchronized with the first clock engine. The second radar chip synchronizes the second clock engine in frequency based on the clock signal and the second clock engine in time based on the start of modulation signal. The second radar chip provides a second radar signal based on the local oscillator signal; the second radar signal is synchronized with the second clock engine.

Abstract: A low phase noise radar system is disclosed. The system has a signal generator having a stable oscillator that outputs a first lower-frequency signal, a direct digital synthesis circuit that outputs an analog waveform, and a mixer to receive the first lower-frequency signal, and the analog waveform, the mixer to mix the first lower-frequency signal and the analog waveform to generate a signal generator output signal. The system further includes an up converter coupled with the signal generator to filter and to increase frequencies of the signal generator output signal to generate a filtered and frequency multiplied signal to be transmitted.

Abstract: A radar sensor system transmits a radar signal that comprises first pulses in a first frequency band and second pulses in a second frequency band. The radar sensor system receives a return of the radar signal from a target, wherein the return comprises the first pulses and the second pulses. The radar sensor system concatenates the first pulses and the second pulses, and computes an estimated range to a target based upon a Fourier transform of the concatenated first and second pulses. A range resolution of the estimated range is based upon a bandwidth of a third frequency band that includes the first frequency band and the second frequency band.

Abstract: A radar sensor system transmits a radar signal that comprises first pulses in a first frequency band and second pulses in a second frequency band. The radar sensor system receives a return of the radar signal from a target, wherein the return comprises the first pulses and the second pulses. The radar sensor system computes a coarse range estimate to the target. Based upon the coarse range estimate, the radar sensor system further computes a fine range estimate to the target, where a resolution of the fine range estimate is based upon a third frequency band that has a bandwidth greater than the first frequency band or the second frequency band.

Abstract: The disclosure relates to a radar system comprising multiple synchronized transceivers.

Abstract: The disclosure relates to a radar system in which multiple radar transceivers are synchronised with a common clock signal.

Abstract: The disclosure relates to a doppler division multiplexing MIMO radar system. Example embodiments include a doppler division multiplexing, DDM, multiple input multiple output, MIMO, radar system (400) comprising: a transmitter (401) connected to a plurality of transmitter antennas (4021?N) via a corresponding plurality of signal paths (4031?N) of different electrical lengths (L1?N) such that a phase of a signal transmitted by the transmitter (401) is different at each of the plurality of transmitter antennas (4021?N).

Abstract: The disclosure relates to a radar system comprising multiple synchronized transceivers.

Abstract: An automotive radar system comprises: a master module, a first radar module, a second radar module, and an optical waveguide arrangement operably coupling the master module to the first and second radar modules. The master module comprises an electro-optical interface device having an electrical domain side and an optical domain side. The optical domain side is operably coupled to the optical waveguide arrangement. The master module comprises a digital clock signal generator operably coupled to the electrical domain side of the electro-optical interface device.

Abstract: A system for register error detection is described, the system comprising: a plurality of addressable registers comprising sets of registers, the registers in each set having contiguous addresses; a cyclic redundancy check generator coupled to the addressable registers and configured to determine a cyclic-redundancy-check result for each set of registers from the values of each of the respective set of registers; a controller coupled to the registers and the cyclic-redundancy-check generator.

Abstract: An automotive radar system comprises: a master module (110), a first radar module (104), a second radar module (106), and an optical waveguide arrangement (108, 112, 116, 120, 124, 126) operably coupling the master module (110) to the first and second radar modules (104, 106). The master module (110) comprises an electro-optical interface device (228) having an electrical domain side and an optical domain side. The optical domain side is operably coupled to the optical waveguide arrangement (108, 112, 116, 120, 124, 126). The master module (110) comprises a digital clock signal generator (210) operably coupled to the electrical domain side of the electro-optical interface device (228).

Abstract: A system for register error detection is described, the system comprising: a plurality of addressable registers comprising sets of registers, the registers in each set having contiguous addresses; a cyclic redundancy check generator coupled to the addressable registers and configured to determine a cyclic-redundancy-check result for each set of registers from the values of each of the respective set of registers; a controller coupled to the registers and the cyclic-redundancy-check generator.