A system and method for detecting targets with radar signals are disclosed which include a receiver configured to receive a radar signal on orthogonally-polarized channels and generate a receiver return vector from the received radar signal, a range filter configured to filter reflections in the receiver return vector at a selected range bin, and a polarization filter configured to filter an identified interference signal from a return of the range filter.

A radar module using multiple polarizations according to an embodiment of the present invention comprises a transmission channel unit (Tx) including a 1-1st antenna and a 1-2nd antenna electromagnetic waves representing different for transmitting polarization characteristics; a reception channel unit (Rx) including N (where N is a natural number) reception channels including a 2-1st antenna and a 2-2nd antenna for receiving echo waves of the electromagnetic waves transmitted by the transmission channel unit to an object and reflected back from the object; and a control unit for selecting the driving mode of the transmission channel unit and the reception channel unit, wherein the 1-1st and 1-2nd antennas are configured so that the electromagnetic wave transmitted by the 1-1st antenna and the electromagnetic wave transmitted by the 1-2nd antenna represent orthogonal polarization characteristics.

A radar signal processing method and an apparatus, and a storage medium that are applied to a first radar. The method includes: determining that a polarization direction of the first radar is a first angle, where the first radar is located at a first vehicle; and transmitting a radar signal based on the polarization direction of the first radar, where a detection direction of the first radar is opposite to a detection direction of a second radar located at the first vehicle, and a polarization direction of the second radar is a second angle; and the first angle and the second angle are orthogonal.

Examples relate to near-field radar filters that can enhance measurements near a radar unit. An example may involve receiving a first set of radar reflection signals at a radar unit coupled to a vehicle and determining a filter configured to offset near-field effects of radar reflection signals received at the radar unit. In some instances, the filter depends on an azimuth angle and a distance for surfaces in the environment causing the first set of radar reflection signals. The example may also involve receiving, at the radar unit, a second set of radar reflection signals and determining, using the filter, an azimuth angle and a distance for surfaces in the environment causing the second set of radar reflection signals. The vehicle may be controlled based in part on the azimuth angle and the distance for the surfaces causing the second plurality of radar reflection signals.

A radar module using multiple polarizations according to an embodiment of the present invention comprises a transmission channel unit (Tx) including a 1-1st antenna and a 1-2nd antenna electromagnetic waves representing different for transmitting polarization characteristics; a reception channel unit (Rx) including N (where N is a natural number) reception channels including a 2-1st antenna and a 2-2nd antenna for receiving echo waves of the electromagnetic waves transmitted by the transmission channel unit to an object and reflected back from the object; and a control unit for selecting the driving mode of the transmission channel unit and the reception channel unit, wherein the 1-1st and 1-2nd antennas are configured so that the electromagnetic wave transmitted by the 1-1st antenna and the electromagnetic wave transmitted by the 1-2nd antenna represent orthogonal polarization characteristics.

A method of joint communication and sensing of a target obstacle (object or human) is disclosed. The method comprises deploying a joint communication and sensing transceiver, comprising a transmitter (TX) having at least two transmitting antennas and a receiver (RX) having at least one receiving antenna; transmitting at least two radio frequency (RF) signals carrying data to a communication receiver by the at least two transmitting antennas; and receiving at least one reflected radio frequency (RF) signal reflected by the target obstacle by the at least one receiving antenna; wherein the at least two RF signals transmitted by the at least two transmitting antennas are applied with cyclic shift diversity; and wherein the at least two RF signals transmitted by the at least two transmitting antennas contain TX-varying phase rotations.

Example embodiments relate to methods and systems for implementing radar electronic support measure operations. A vehicle's processing unit may receive information relating to electromagnetic energy radiating in an environment of the vehicle that is detected using a vehicle radar system. The electromagnetic energy originated from one or more external emitters, such as radar signals transmitted by other vehicles. The processing unit may determine a spectrum occupancy representation that indicates spectral regions occupied by the electromagnetic energy and subsequently adjust operation of the vehicle radar system based on the spectrum occupancy representation to reduce or mitigate interference with the external emitters in the vehicle's environment. In some examples, the vehicle radar system may be switched to a passive receive-only mode to measure the electromagnetic energy radiating in the environment from other emitters.

This application provides example detection signal transmitting methods, detection apparatuses, and storage medium. One example method includes determining an orientation of a field of view of a detection apparatus. One of a plurality of anti-interference parameters can then be selected as a target anti-interference parameter based on the orientation of the field of view of the detection apparatus and according to a predefined rule, where the plurality of anti-interference parameters are determined according to the predefined rule. A detection signal can then be transmitted based on the target anti-interference parameter.

Example embodiments relate to techniques that involve detecting and mitigating automotive interference. Electromagnetic signals propagating in the environment can be received by a radar unit that limits the signals received to a particular angle of arrival with reception antennas that limit the signals received to a particular polarization. Filters can be applied to the signals to remove portions that are outside an expected time range and an expected frequency range that depend on radar signal transmission parameters used by the radar unit. In addition, a model representing an expected electromagnetic signal digital representation can be used to remove portions of the signals that are indicative of spikes and plateaus associated with signal interference. A computing device can then generate an environment representation that indicates positions of surfaces relative to the vehicle using the remaining portions of the signals.

A radar system (210) for a vehicle (200), comprising a plurality of radar transceivers (202, 203, 204, 205) and a control unit (208). Each radar transceiver (202, 203, 204, 205) is associated with a main pointing direction (P1, P2, P3, P4) and a certain frequency sub-band (A, B, C, D), where the sub-bands (A, B, C, D) together form a certain dedicated frequency band. The control unit (208) is adapted to define heading intervals which divide a full turn interval 0-360 into sections, assign a corresponding sub-band (A, B, C, D) to each heading interval, determine a present vehicle heading (F), and to assign a corresponding sub-band (A, B, C, D) to each one of the radar transceivers (202, 203, 204, 205) in dependence of the heading interval that includes the present vehicle heading (F).