Patent classifications
G01S7/288
Sensor circuit using orthogonal phase coding
A transceiver circuit included in a computer system may include multiple antennas, a transmitter circuit and a receiver circuit. The transmitter circuit may store an identifier number and generate multiple numbers using the stored identifier number. The transmitter circuit may also generate a transmit signal that include multiple pulses, where a. given pulse may include multiple chirps encoded with the multiple numbers. The receiver circuit may receive a reflected version of the transmit signal and generate an output signal using the reflected version of the transmit signal.
INFORMATION PROCESSING APPARATUS AND SENSING METHOD
Provided is an information processing apparatus configured to sense an object by using an FMCW radar. The information processing apparatus includes: a data processing unit configured to process a reception signal and generate a power spectrum signal with a predetermined number of bins; an acquisition unit configured to acquire a plurality of peak bins corresponding to the object on the basis of the power spectrum signal; an extraction unit configured to extract an output signal corresponding to the power spectrum signal; and a correction unit configured to correct a phase of the output signal according to bin numbers of the plurality of peak bins. The data processing unit may apply a higher-order window function than a rectangular window to the reception signal. The correction unit may correct the phase of the output signal.
Device and method for processing radar signals
A radar device is disclosed including an input DMA module, at least one processing module, and an output DMA module. The input DMA module is arranged to access a memory and supply data from the memory to the at least one processing module, wherein each of the processing modules is arranged to be enabled or disabled. The at least one processing module that is enabled is arranged to process at least a portion of the data supplied by the input DMA module, and the output DMA module is arranged to store the data that are processed by the at least one processing module that is enabled in the memory. Also, a method for processing data by a radar device is provided.
Device and method for processing radar signals
A radar device is disclosed including an input DMA module, at least one processing module, and an output DMA module. The input DMA module is arranged to access a memory and supply data from the memory to the at least one processing module, wherein each of the processing modules is arranged to be enabled or disabled. The at least one processing module that is enabled is arranged to process at least a portion of the data supplied by the input DMA module, and the output DMA module is arranged to store the data that are processed by the at least one processing module that is enabled in the memory. Also, a method for processing data by a radar device is provided.
High resolution automotive radar system with forward and backward difference co-array processing
A radar system, apparatus, architecture, and method are provided for generating a mono-static virtual array aperture by using a radar control processing unit to construct a mono-static MIMO virtual array aperture from radar signals transmitted orthogonally from transmit antennas and received at each receive antennas, and to construct a mono-static MIMO forward difference virtual array aperture by performing forward difference co-array processing on the mono-static MIMO virtual array aperture to fill in holes in the mono-static MIMO virtual array aperture, thereby mitigating or suppressing spurious sidelobes caused by gaps or holes in the mono-static MIMO virtual array aperture.
High resolution automotive radar system with forward and backward difference co-array processing
A radar system, apparatus, architecture, and method are provided for generating a mono-static virtual array aperture by using a radar control processing unit to construct a mono-static MIMO virtual array aperture from radar signals transmitted orthogonally from transmit antennas and received at each receive antennas, and to construct a mono-static MIMO forward difference virtual array aperture by performing forward difference co-array processing on the mono-static MIMO virtual array aperture to fill in holes in the mono-static MIMO virtual array aperture, thereby mitigating or suppressing spurious sidelobes caused by gaps or holes in the mono-static MIMO virtual array aperture.
Beamformer for digital array
Methods and apparatus for providing a generic beamforming system. A first beamforming level can process digitized array data to form subarrays and output subarray data for the formed subarrays. A second beamforming level can process the subarray data to form beams and output beamforming data for a plurality of modules. A third beamforming level can process the beamforming data to process the beamforming data and generate formed beams for the array.
System and method for generating point cloud data in a radar based object detection
According to an aspect, method of enhancing a resolution in a radar system having an antenna aperture comprises measuring a first radiation pattern corresponding to a first set of receiving antennas by feeding a known radio frequency (RF) signal over the first set of receiving antennas, wherein the first set of radiation due to an impairment, coherently combining an interpolated radiation pattern with a received radar signal received by the set of receiving antenna when employed for an object detection, to generate a high signal to noise ratio (SNR) received signal, and iteratively combining the high SNR received signal with the interpolated signal to reduce the error due to the impairment.
System and method for generating point cloud data in a radar based object detection
According to an aspect, method of enhancing a resolution in a radar system having an antenna aperture comprises measuring a first radiation pattern corresponding to a first set of receiving antennas by feeding a known radio frequency (RF) signal over the first set of receiving antennas, wherein the first set of radiation due to an impairment, coherently combining an interpolated radiation pattern with a received radar signal received by the set of receiving antenna when employed for an object detection, to generate a high signal to noise ratio (SNR) received signal, and iteratively combining the high SNR received signal with the interpolated signal to reduce the error due to the impairment.
Methods for radar coexistence
A method and apparatus for selecting frequency modulated continuous wave waveform parameters for multiple radar coexistence by a user equipment is described. The user equipment may transmit a radar waveform consisting of a number of chirps, with each chirp having a same duration. The user equipment may vary waveform parameters of the radar waveform for at least a subset of the number of chirp, where the waveform parameters may be chosen from a codebook comprising at least one codeword of parameters. Reflected radar waveforms are received and processed where the processing includes applying a fast time discrete Fourier transform to reflected radar waveforms to produce a one dimension peak in a time delay dimension for each reflected waveform; and applying a slow time discrete Fourier transform to the reflected radar waveforms, where peaks for the reflected waveforms are added.