There is described a ultra-wide band (UWB) communication device, comprising:

i) a UWB antenna, configured to receive a UWB signal from a further UWB communication device, and
ii) a control device, configured to
iia) determine an angle of arrival (β) based on the received UWB signal,
iib) determine a distance between the UWB communication device and the further UWB communication device, and thereby
iic) compensate for a distance determination disturbance using the determined angle of arrival (β).

Further, a UWB communication system and a method of determining a distance are described.

A direction-finding antenna includes at least a first set of radiating elements configured to radiate at least a first wavelength (λ.sub.1) and a second set of radiating elements configured to radiate at a second wavelength (λ.sub.2) that is shorter than the first wavelength (λ.sub.1). The first set of radiating elements defines a first circle having a first radius. The second set of radiating elements defines a second circle having a second radius that is smaller than the first radius of the first circle. The direction-finding antenna further includes a transmission line-based multiplexer configured to selectively couple the first set of radiating elements or the second set of radiating elements to a radio frequency (RF) feed line, or a plurality of switches configured to selectively couple selected radiating elements of the first set of radiating elements or the second set of radiating elements to the RF feed line.

Provided are a device and a method for estimating an angle of arrival (AoA) and an angle of departure (AoD) in a communication system having 1-bit quantization.

A radar device includes: a first receiver antenna outputting a first reception signal; a second receiver antenna outputting a second reception signal; a third receiver antenna outputting a third reception signal; a first receiver circuit processing the first reception signal; and a second receiver circuit selecting one of the second reception signal and the third reception signal and processing the selected signal. The first receiver antenna is placed apart from the second receiver antenna in a first direction and apart from the third receiver antenna in a second direction.

The present disclosure provides satellite tracking systems and tracking methods. The satellite tracking system includes an array of antenna elements and a control unit. A feed current for each of the antenna elements passes through a phase shifter. The control unit generates a control signal for the phase shifter. The satellite tracking system searches, positions, and tracks a target satellite in accordance with the control signal. The satellite tracking systems and methods utilize step scanning and particle swarm optimization in the search stage, compensating for gaps formed during the satellite searching in the positioning stage, and conical scanning in the tracking stage.

Systems and methods for mapping location and characteristics about traffic participants are described. The systems and methods advantageously use correlative receivers for observing wireless emissions from or reflected by a plurality of traffic participants to allow for tracking geolocation and velocimetry information in real-time. The real-time geolocation and velocimetry information can be useful in autonomous vehicle navigation applications and useful for reducing computational burdens associated with tracking locations of many multiple traffic participants using direct sensor measurements, for example.

Techniques for determining an angle-of-arrival of a wireless transmission are provided, including receiving, with a first antenna, at least a first portion of a wireless transmission, determining when a second portion of the wireless transmission will be received, switching to the second antenna to receive the second portion of the wireless transmission, determining an angle of arrival of the wireless transmission based on the first portion and the second portion of the wireless transmission, and outputting the angle of arrival of the wireless transmission.

Techniques for determining an angle-of-arrival of a wireless transmission are provided, including receiving, with a first antenna, at least a first portion of a wireless transmission, determining when a second portion of the wireless transmission will be received, switching to the second antenna to receive the second portion of the wireless transmission, determining an angle of arrival of the wireless transmission based on the first portion and the second portion of the wireless transmission, and outputting the angle of arrival of the wireless transmission.

In accordance with a first aspect of the present disclosure, a localization device is provided, comprising: an ultra-wideband, UWB, communication unit configured to transmit a localization signal to an external device and to receive a response signal from the external device; an angle of arrival measurement unit configured to measure an angle at which the response signal is received; an orientation sensor configured to sense an orientation of the localization device; and a processing unit configured to determine if an angle at which the localization signal is received by the external device, an orientation of the external device, said orientation of the localization device, and said angle at which the response signal is received meet a predefined relationship. In accordance with a second aspect of the present disclosure, a corresponding method of operating a localization device is conceived.

The present invention relates to an amplitude goniometer comprises P receiver channels, P being greater than or equal to 2, each receiver channel being identified by an index p, each receiver channel comprising an antenna coupled to a receiver chain followed by at least two digital receiver modules each comprising an analogue-to-digital conversion module associated with a respective sampling frequency, each sampling frequency not complying with the Shannon criterion and not being a multiple of another frequency, N being the number of frequencies, N being greater than or equal to 2, each frequency being referenced by an index n, the amplitude goniometry estimator working from the amplitudes of the signals originating from at least Q adjacent receiver channels of the P receiver channels, Q being at most equal to P, the sampling frequencies being associated with the analogue-to-digital conversion modules of the Q adjacent receiver channels.