An electronic circuit includes adjustment units configured to receive a same oscillating signal having a predetermined frequency and to adjust a phase and an amplitude of the oscillating signal to produce output oscillating signals, coupling points configured to supply the output oscillating signals produced by the adjustment units to antennas, couplers provided in one-to-one correspondence with outputs of the adjustment units, equal-length lines sharing the same length and extending from the couplers, respectively, mixer circuits coupled to the equal-length lines, respectively, each of the mixer circuits being configured to receive a same reference oscillating signal having the predetermined frequency and a corresponding one of the output oscillating signals, and a control circuit configured to cause the adjustment units to adjust at least one of the phase and the amplitude in response to direct-current components in outputs of the mixer circuits.

A radar apparatus includes a signal generation unit and a temperature sensing means. The signal generation unit is arranged to generate radar signals at an output power and has an output for the radar signals. The temperature sensing means has an output and is arranged to produce an output signal indicative of a temperature of at least part of the radar apparatus. The output of the temperature sensor is coupled to the signal generation unit. The signal generation unit is configured so the output power is a first power when the output signal is indicative of a temperature within a first temperature range and is a second power lower than the first power when the output signal is indicative of a temperature within a second temperature range higher than the first temperature range.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment receives a sliding window of measurements associated with a radar signal transmitted by the UE; determines that a user is within a threshold distance of the UE, wherein the threshold distance is determined to be a first distance when an energy measurement, associated with the radar signal, indicates an energy reduction satisfying a threshold energy reduction, or wherein the threshold distance is determined to be a second distance when the sliding window of measurements indicates an amount of energy variation satisfying a threshold amount of energy variation associated with the radar signal; and performs, based at least in part on determining that the user is within the threshold distance, an action associated with a communication signal of the UE. Numerous other aspects are provided.

A radar device for the transmission of a signal in a frequency band. The radar device includes a control means and an oscillator. The input of the oscillator is connected to the control means by means of a converter. The oscillator is controllable by means of the control means for the generation of the signal. The signal is generated by means of the oscillator and can be picked up on an output of the oscillator. The radar device also includes at least one transmission aerial for the transmission of the signal being present at the output of the oscillator. The transmission aerial is connected to the output of the oscillator. At least one receiver channel is provided for the reception of a received signal and for the processing of the received signal and for the transmission of the processed received signal to the control means. The receiver channel has at least one receiving aerial and a mixer for the mixing of the received signal with the signal which is present at the output of the oscillator. The mixer is connected to the output of the oscillator, and the output of the oscillator is connected to an input of a switchable amplifier and the amplifier provides a signal at the output and transmits it to the at least one mixer. A wattmeter is provided, which monitors the signal at the output of the amplifier and transmits it to the control means.

A method is provided that includes a vehicle receiving data from an external computing device indicative of at least one other vehicle in an environment of the vehicle. The vehicle may include a sensor configured to detect the environment of the vehicle. The at least one other vehicle may include at least one sensor. The method also includes determining a likelihood of interference between the at least one sensor of the at least one other vehicle the sensor of the vehicle. The method also includes initiating an adjustment of the sensor to reduce the likelihood of interference between the sensor of the vehicle and the at least one sensor of the at least one other vehicle responsive to the determination.

Methods, systems, apparatuses, and computer program products are provided for detecting objects, including humans, using a mobile communications device. A communication space is scanned with a beam-shaped signal transmitted by a phased antenna array of the mobile communications device. Information is discerned from one or more attenuated signals received from the communication space based on the beam-shaped signal. The information is analyzed to determine an object in the communication space. Whether the object is likely at least a portion of a human is determined. A communication signal transmitted by the phased antenna array is modified in response to determining that the object is likely at least a portion of a human, and that the at least a portion of the human has a predetermined spatial relationship with the phased antenna array.

A FMCW radar system with a built-in self-test (BIST) system for monitoring includes a receiver, a transmitter, and a frequency synthesizer. A FMCW chirp timing engine controls timing of operations at least one radar component. The BIST system includes at least one switchable coupling for coupling a first plurality of different analog signals including from a first plurality of selected nodes in the receiver or transmitter that are all coupled to a second number of monitor analog-to-digital converters (ADCs). The second number is less than (<) the first plurality of different analog signals. The BIST system includes a monitor timing engine and controller operating synchronously with the chirp timing engine, that includes a software configurable monitoring architecture for generating control signals including for selecting using the switchable coupling which analog signal to forward to the monitor ADC and when the monitor ADC samples the analog signals.

This application provides an information transmission method and apparatus, relates to interference processing of a cooperative radar, and is applicable to internet of vehicles scenarios, such as a vehicle-to-everything V2X scenario, a long term evolution-vehicle LTE-V scenario, and a vehicle-to-vehicle V2V scenario. Therefore, information related to a transmit power can be transmitted through an interface of a radar detection apparatus, and a capability of an automated driving system or an advanced driver assistant system ADAS is improved, to adapt to a variable driving environment. The information transmission method includes: A first detection apparatus receives indication information, where the indication information is used to indicate the first detection apparatus to determine a first transmit power used for transmitting a radar signal; and the first detection apparatus determines the first transmit power based on the indication information.

Examples disclosed herein relate to an apparatus for attenuation control of a radar signal in a vehicle. The apparatus includes an attenuation control mechanism having at least one property to reduce distortion of a radar signal transmission positioned on a surface of the vehicle, and radiating elements proximate the attenuation control mechanism enabling radiation beams to propagate with reduced distortion.

Aspects of the disclosure relate to classifying a target object. An electronic device may transmit a detection signal and receive a reflection signal reflected from the target object. The electronic device then determines, based on one or more features of the reflection signal, a category of the target object and adjusts at least one transmission parameter based on the category. The electronic device then transmits an adjust signal using the transmission parameter. Other aspects, embodiments, and features are also claimed and described.