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.

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.

Certain aspects provide a method for radar detection by an apparatus. The method generally includes transmitting a radar waveform in sets of transmission time intervals (TTIs), using a common set of radar transmission parameters in each set of TTIs, to perform detection of a target object, varying at least one of the common set of radar transmission parameters between sets of TTIs, and identifying interfering signals based on observed changes in monitored parameters of received signals across sets of TTIs due to the varying.

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).

This disclosure concerns a method for mitigating radar interference in an area, carried out by a first radar sensor device on a first vehicle and including: transmitting to a broadcasting center, via a wireless communication, navigation information of the first radar sensor device, radar parameter information including the current radar operating parameters of the first radar sensor device and mitigation capability information indicating the capabilities of the first radar sensor device to change one or more radar parameters and mitigate radar interference; receiving from the broadcasting center an updated list of radar sensor devices in the area including, for each radar sensor device, a navigation information and a radar parameter information, the radar parameter information for the first radar sensor device including a new radar parameter assigned in compliance with the transmitted mitigation capability information; and activating the new radar parameter in the first radar sensor device.

This document discloses techniques, apparatuses, and systems for mitigating radar interference between radar sensor devices (e.g., on multiple vehicles), including various performed by a first radar sensor device (e.g., within a first vehicle). The first radar sensor device determines information about a driving scenario in a surrounding environment of the first radar sensor device based on information received from multiple sources. The first radar sensor may determine, based on the determined information about the driving scenario in the surrounding environment, how to change at least one radar parameter of the first radar sensor device to avoid a possible radar interference. The at least one radar parameter may be changed according to the determination. In this way, a radar sensor device may mitigate radar interferences and improve radar performance.

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.

A radar apparatus according to the present disclosure includes: a transmission unit configured to transmit radio waves; a reception unit including a first receiver configured to receive a first reflected radio wave and a second receiver configured to receive a second reflected radio wave, the first reflected radio wave and the second reflected radio wave having different polarization characteristics from each other and being included in reflected radio waves that are the radio waves reflected by a detection target; and a control unit configured to control operations of the transmission unit and the reception unit, and configured to identify the detection target on the basis of the operation of the transmission unit, a first reception level at the first receiver, and a second reception level at the second receiver.

In one embodiment, a method includes identifying, for each of one or more environmental radars, one or more parameter values associated with a radar signal of the environmental radar, determining one or more transmission parameter values for the radar, wherein a combination of the one or more transmission parameter values is different from a combination of the one or more parameter values of each of the one or more environmental radars, and configuring the radar with the determined one or more transmission parameter values.

Embodiments include methods for managing operation of a first radar system executed by a processor of a first user equipment (UE) of a first vehicle having the first radar system. In various embodiments, a processor of a first UE of the first vehicle may receive at the first UE from a base station, a wireless communication control message including radar transmission configuration information or radar reception interference information regarding the radar signals from a second radar system of a second vehicle having a second UE. Some embodiments may use the radar transmission configuration information or radar reception interference information received from the base station to manage operation of the first radar system.