Systems and methods for performing body scans to ascertain body measurements of a subject. A radar based scanner may be used to generate a three dimensional image of a subject as a point cloud map of electromagnetic radiation reflected from a target region. The point cloud may be mapped to a parametric model of a standard human shape. The mapping may be optimized by adjusting parameters of the parametric model. The resulting parameters of the optimized model may be used to indicate the body measurements of the scanned subject.

A method and electronic device for determining relevant signals in radar signal processing. The electronic device includes a radar transceiver, a memory, and a processor. The processor is configured to cause the electronic device to obtain, via the radar transceiver of the electronic device, radar measurements for one or more modes in a set of modes; process the radar measurements to obtain a set of radar images; identify relevant signals in the set of radar images based on signal determination criteria for an application; and perform the application using only the relevant signals.

It is described a radar system (100), comprising: i) a transmitter (120) configured to: provide a code (C), identify a plurality of regions (R) within the code (C), apply a transmitter-specific cyclic shift scheme to the plurality of regions (R), generate a signal (S) from the code (C) and transmit the signal; and ii) a receiver (130), configured to: receive an echo (E) of the signal (S), and identify the transmitter (120) based on the transmitter-specific cyclic shift scheme.

Further, a radar arrangement and a method of performing a radar operation are described.

A radar method, in particular a primary radar method, in which at least one first and at least one second transceiver unit (S1, S2), which are in particular spatially separated from one another, and transmit and receive signals simultaneously or overlapping in time, wherein a respective comparison signal, in particular mixed signals s.sub.1k,mix(t) or s.sub.2k,mix(t) are formed from a signal transmitted and received by the respective transceiver unit, wherein a phase correction is formed for each of a plurality of sample values, preferably a phase correction value for each of a plurality of sample values from the comparison signals s.sub.1k,mix(t) or s.sub.2k,mix(t), in particular in such a way that, preferably by a mathematical operation, a measure is formed of a phase difference per sample value between the at least two signals s.sub.1k,mix(t) or s.sub.2k,mix(t).

A method for testing a radar device including a master radar device and a slave radar device includes: moving a test target through a field of view of the radar device; measuring an angle of the test target with respect to the radar device at a plurality of positions; evaluating the reliability of the measured angles; and specifying at least one of a usable field of view of the radar device or a number of required repetitions for a reliable measurement based on the evaluating.

In a general aspect, a motion detection system detects gestures (e.g., human gestures) and initiates actions in response to the detected gestures. In some aspects, channel information is obtained based on wireless signals transmitted through a space by one or more wireless communication devices. A gesture recognition engine analyzes the channel information to detect a gesture (e.g., a predetermined gesture sequence) in the space. An action to be initiated in response to the detected gesture is identified. An instruction to perform the action is sent to a network-connected device associated with the space.

Disclosed are techniques for wireless communication. In an aspect, a first wireless device transmits a request to participate in a coordination and detection procedure to determine whether a human is present in an environment of the first wireless device, receives an acknowledgment from at least a second wireless device, transmits a first set of at least two consecutive wireless signals to the second wireless device, receives a second set of at least two consecutive wireless signals from the second wireless device, determines whether the human is present in the environment based at least in part on a first time of flight (ToF) and a second ToF between the first wireless device and the second wireless device, and sets a transmit power of the first wireless device based on the determination of whether the human is present in the environment.

A computer-implemented method of configuring a sensing system for monitoring a place, the sensing system comprising a plurality of network devices located in the place and including at least one network device configured as a transmitter to transmit wireless signals over a wireless channel and at least one network device configured as a receiver to receive wireless signals transmitted in the place and subject to disturbance by the place. Wireless signals are transmitted from the transmitter. Disturbed wireless signals are detected at the receiver. A characteristic of a first physical configuration of the network devices is determined from the disturbed wireless signals, and feedback based on the characteristic is provided to a user, via a user interface of a client device associated with the user. It is detected that a second physical configuration has been implemented in response to the feedback, and a characteristic of a second physical configuration is determined.

The present disclosure generally relates to a multistatic radar system and a method for a spatially resolved detection of an object under test. The multistatic radar system includes an at least two-dimensional multistatic array of antenna elements having an at least partially shared coverage area. At least one data processing circuit is coupled to the array. Analog and/or digital beamforming is performed thereby obtaining at least one image of the object under test at least partially being located within the shared coverage area. Processing the image obtained is used to resolve at least one scattering center of the object under test. A spatially resolved scattering center distribution is determined based on the image obtained.

Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a first device may receive a feedback message from a second device that indicates a set of one or more sensing results associated with a sensing procedure performed by the second device. The first device may transmit, to the second device, a control message indicating resource information for a message for the second device. The control message may include an indication of a transmission configuration indication (TCI) state indicating a quasi-colocation (QCL) relationship between a reference signal associated with the message and a sensing result of the set of one or more sensing results indicated by the feedback message. The first device may transmit the message using a transmit beam and the second device may receive the message using a receive beam based on the TCI state and the QCL relationship.