According to an example aspect of the present invention, there is provided monitoring living facilities by a multichannel radar. A field of view within a frequency range from 1 to 1000 GHz, for example between 1 to 30 GHz, 10 to 30 GHz, 30 to 300 GHz or 300 to 1000 GHz, is scanned using a plurality of radar channels of the radar. Image units comprising at least amplitude and phase information are generated for a radar image on the basis of results of the scanning. Information indicating at least one error source of a physical movement of the radar and interrelated movements of targets within the field of view are determined on the basis of the image units. Results of the scanning are compensated on the basis of the determined error source. A radar image is generated on the basis of the compensated results.

According to an example aspect of the present invention, there is provided monitoring living facilities by a multichannel radar. A field of view within a frequency range from 1 to 1000 GHz, for example between 1 to 30 GHz, 10 to 30 GHz, 30 to 300 GHz or 300 to 1000 GHz, is scanned using a plurality of radar channels of the radar. Image units comprising at least amplitude and phase information are generated for a radar image on the basis of results of the scanning. Information indicating at least one error source of a physical movement of the radar and interrelated movements of targets within the field of view are determined on the basis of the image units. Results of the scanning are compensated on the basis of the determined error source. A radar image is generated on the basis of the compensated results.

In one embodiment, a method includes, by a computing system of a vehicle, providing one or more instructions configured to cause a first radar antenna to broadcast a modulated radar chirp signal. The modulated radar chirp signal may include data. The method includes receiving a first return signal that corresponds to the modulated radar chirp signal reflected off of an object in an environment. The method includes calculating a location for the object using the first return signal. The method includes receiving, from a second radar antenna, a second return signal indicating that the modulated radar chirp signal was received by the second radar antenna.

In one embodiment, a method includes, by a computing system of a vehicle, providing one or more instructions configured to cause a first radar antenna to broadcast a modulated radar chirp signal. The modulated radar chirp signal may include data. The method includes receiving a first return signal that corresponds to the modulated radar chirp signal reflected off of an object in an environment. The method includes calculating a location for the object using the first return signal. The method includes receiving, from a second radar antenna, a second return signal indicating that the modulated radar chirp signal was received by the second radar antenna.

In some examples, a system is configured to be mounted on a vehicle, the system including one or more phased-array radar devices configured to transmit first radar signals, receive first returned radar signals, transmit second radar signals, and receive second returned radar signals. In some examples, the system also includes processing circuitry configured to detect an object based on the first returned radar signals and determine an estimated altitude of the vehicle above a ground surface based on the second returned radar signals.

In some examples, a system is configured to be mounted on a vehicle, the system including one or more phased-array radar devices configured to transmit first radar signals, receive first returned radar signals, transmit second radar signals, and receive second returned radar signals. In some examples, the system also includes processing circuitry configured to detect an object based on the first returned radar signals and determine an estimated altitude of the vehicle above a ground surface based on the second returned radar signals.

A system includes a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to: receive, from a radar sensor of a vehicle, radar data indicative of a stationary object proximate to the radar sensor; receive, from a non-radar sensor of the vehicle, vehicle state data indicative of a vehicle state, the vehicle state data indicative of at least a longitudinal velocity and a yaw rate of the vehicle; determine an orientation estimate and an offset estimate of the radar sensor based on the radar data and the vehicle state data; and determine whether to actuate a vehicle system based on at least one of the orientation estimate or the offset estimate.

A system includes a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to: receive, from a radar sensor of a vehicle, radar data indicative of a stationary object proximate to the radar sensor; receive, from a non-radar sensor of the vehicle, vehicle state data indicative of a vehicle state, the vehicle state data indicative of at least a longitudinal velocity and a yaw rate of the vehicle; determine an orientation estimate and an offset estimate of the radar sensor based on the radar data and the vehicle state data; and determine whether to actuate a vehicle system based on at least one of the orientation estimate or the offset estimate.

A method of using a multi-input multi-output (MIMO) antenna array for high-resolution radar imaging and wireless communication for advanced driver assistance systems (ADAS) utilizes a MIMO radar and at least one base station. The MIMO radar establishes wireless communication with the base station via an uplink signal. Likewise, the base station sends a downlink signal to the MIMO radar. Further, unlike conventional vehicle-to-everything (V2X) systems that filter the reflected uplink signal, the MIMO radar uses the reflected uplink signal to detect a plurality of targets. Accordingly, the MIMO radar derives spatial positioning data for each target from the reflected uplink signal.

There is provided an estimation device that estimates a living body orientation. The estimation device includes: transceivers that transmit transmission signals using M transmission antenna elements arranged to surround a predetermined range including a living body, and receive reception signals using N receiving antenna elements; and a circuit that, for each of M sets of N reception signals corresponding to transmitted M transmission signals, performs calculation of a characteristic quantity based on the N reception signals included in the set, the characteristic quantity with a greater value indicating a waveform having a larger amplitude and higher regularity, identifies a first transmission antenna element corresponding to a first characteristic quantity having a greatest value among M characteristic quantities by comparing the M characteristic quantities obtained by the calculation with each other, and estimates the living body orientation to indicate a predetermined direction based on the first transmission antenna element identified.