A device and a method for determining the position of an object, in particular of a moving object, in a three dimensional space is made available. Here the device comprises at least two switchable transmitting antenna arrays having different vertical beam alignments and a number of receiving antennas arranged in a row. The transmitting antennas are arranged spaced apart by a distance that corresponds to the distance between the outer phase centers of the receiving antennas. Otherwise the transmitting antennas can be positioned arbitrarily around the receiving antenna. The horizontal beam sweep over a wide angle range is implemented by the digital beam forming method. The vertical object position is measured by comparing the amplitude of the received signals with sequentially operated transmitting antennas having different vertical beam directions.

Examples disclosed herein relate to a beam steering vehicle radar for object identification. The radar includes a radar module having at least one beam steering transmit antenna to radiate one or more radio frequency (RF) beams in a plurality of directions, at least one beam steering receive antenna to receive one or more RF return signals, and a transceiver to generate radar data capturing a surrounding environment from the one or more received RF return signals. The radar also includes a perception module configured to detect and identify an object in the surrounding environment from the radar data. At least one of the beam steering transmit antenna has a side lobe reduction mechanism formed within a substrate to reduce side lobes in the radiated one or more RF beams.

A vehicle radar sensor unit (2) arranged to acquire a plurality of radar detections, and including an antenna arrangement (3), a transmitter unit (4), a receiver unit (5) and a processing unit (6). The antenna arrangement (3) has at least two transmitter antennas (7, 8) and at least two receiver antennas (9, 10, 11, 12), where two transmitter antennas (7, 8) have a vertical spacing (h) between their respective phase centers (17, 18) that exceeds half the free-space wavelength of the transmitted signal. The processing unit (5) is arranged to determine a first radial velocity of each radar detection by tracking the change of radial distance (r) to each radar detection for a plurality of radar cycles; determine a second radial velocity that best matches the first radial velocity; track a plurality of measured heights (z) as a function of radial distance (r); and to choose a measured height (z.sub.GT) among the tracked measured heights (z) that has a minimal change from radar cycle to radar cycle.

A micro impulse radar (MIR) system includes a first sensor, a second sensor, and a control circuit. The first sensor includes a micro impulse radar (MIR) sensor configured to receive a plurality of radar returns corresponding to an MIR radar signal transmitted towards a subject. The second sensor is configured to detect sensor data regarding the subject. The control circuit is configured to calculate a physiological parameter of the subject based on the plurality of radar returns and the sensor data.

A stethoscope system includes a microphone device configured to receive a plurality of sound waves from the subject and output an audio signal corresponding to the plurality of sound waves; and a control circuit configured to receive the audio signal from the microphone device and calculate a physiological parameter based on the audio signal.

A mobile electronic device includes a plurality of radio frequency (RF) antennas and a processor. RF antennas are configured to transmit (TX) or receive (RX) a RF signal. The processor is configured to configure one RF antenna, among the plurality of RF antenna, as a TX antenna and remaining RF antennas as RX antennas, cause the TX antenna to transmit the RF signal, cause the RX antennas to receive portions of the RF signal, the portions reflected from an object, calculate each of flight times of the RF signal with respect to each of the RX antennas, and identify a location of the object based on each of flight times of the RF signal, wherein each of the plurality of RF antennas is reconfigurable as the TX antenna or the RX antennas. A method for operating a mobile device is also provided.

The present invention provides a radar device capable of reducing processing load while arraying receiving antennas in two directions. In the present invention, a transmitting unit (transmitting antenna) transmits an electromagnetic wave. A plurality of receiving antennas 108 receive a reflected wave from an object which reflects the electromagnetic wave, and convert the reflected wave into a first signal Sig1. A plurality of receiving circuits 520 are respectively connected to the receiving antennas 108 and generate a second signal Sig2 from the first signal Sig1. A signal processing unit 103 processes the second signal Sig2. The plurality of receiving antennas 108 are arrayed in a first direction and a second direction crossing the first direction. The signal processing unit 103 switches the combination of the second signal Sig2 that is processed, for each frame indicating a time period extending from when the transmitting antenna transmits the electromagnetic wave to when the signal processing unit 103 processes the second signal Sig2.

A MIMO radar sensor is described for motor vehicles as including an antenna array, which is angle-resolving in two directions perpendicular to each other and including multiple receiving antennas, which are situated offset from one another in a first of the two directions, and multiple transmitting antennas, and including a control and evaluation unit for activating the transmitting antennas and for evaluating signals of the receiving antennas. The antenna array includes at least three selectively activatable transmitting antennas, which are offset from one another both in the first direction as well as in the second direction, and the control and evaluation unit is designed for a two-dimensional angle estimation in the first direction and the second direction using the signals received when the transmitting antennas are activated differently.

A system for simulating quadrature phase-shift key (QPSK) beam forming in an antenna array, including a transmitter configured and operable to generate an oscillating signal, an antenna array, a binary phase shifter associated with each transmitting antenna, the binary phase shifter configured and operable to selectively apply a phase shift of 180 degrees to the transmitted signal, and a controller configured to send instructions to the binary phase shifters, at least one receiving antenna, and a post processor comprising a memory operable to save received signals and a processing unit operable to apply a 90 degree phase shift to selected received signals stored in the memory, and further operable to sum received signals stored in the memory, operable to manipulate received signals.

A drone detection radar can include a plurality of antenna systems, each antenna system being arranged to transmit a signal into an associated sector, and to receive signals reflected from targets in the sector, the sectors collectively forming a monitored volume, and wherein a sub-set of the antenna systems are active at any one time, with the active sub-set of antenna systems being arranged to monitor their respective volumes for a duration sufficient to measure Doppler signals associated with slow moving drones, with the radar being arranged to switch to a different sub-set of antenna systems after each duration, such that the whole volume is monitored within a predetermined period. Combining a staring array from an antenna system with a plurality of switched antenna system allows drones to be both detected and tracked, with appropriate selection of the predetermined period.