Universite Du Luxembourg

Iee International Electronics and Engineering S.a.

Iee International Electronics & Engineering S.a. And Université Du Luxembourg

Ses S.a.

Bhavani Shankar Mysore Rama Rao

Bjorn Ottersten

Christian Hammes

Björn Ottersten

Thomas Stifter

Udo Schroder

Dimitri Tatarinov

Thiemo Spielmann

Farbod Kayhan

Sayed Hossein Dokhanchi

Yogesh Nijsure

Wallace Alves Martins

Roberto Piazza

Udo Schröder

Gabriel Tedgue Beltrao

Mohammad Alaeekerahroodi

Udo SCHRÖDER

A method for vital sign monitoring using a radar sensor system that includes a transmitter, a receiver, and processing device. The transmitter irradiates a body region of a person with radar radiation, the receiver generates a receiver signal from reflected radiation from the body region, and the processing device generates, for each of a plurality of processing windows, a displacement signal based on the receiver signal. The displacement signal characterizes a body motion having, as oscillating motions, a breathing motion and a heartbeat motion, and calculates an estimated fundamental frequency for at least one oscillating motion. The processing device applies an adaptive Nonlinear Least Squares method to calculate a plurality of frequency estimates, each of which corresponds to one of a plurality of harmonics of a first oscillating motion, wherein the processing device calculates a first estimated fundamental frequency for the first oscillating motion based on the frequency estimates.

Method and system for contactless vital sign monitoring via calculating displacement signal by applying adaptive nonlinear least squares method

A method of sensing a target in a target detection system having processing circuitry and a multiplexer coupled to the processing circuitry and to a plurality Nof transmit antennas forming a sparse transmit uniform linear array (ULA), the multiplexer being configured to generate multiplexed and phase modulated transmit signals (T. . . T) based on signals from a local oscillator. The processing circuitry receives signals via a plurality Nof receive antennas forming a dense receive ULA. The method includes transmitting the transmit signals via the transmit antennas as a general radiation pattern corresponding to a block circulant probing signal matrix, and receiving via the receive antennas receive signals resulting from backscattering of the transmit signals transmitted towards K targets. The method further includes processing the received reflection signals to determine the presence, range and/or angular position of a target within a field of view of the transmit antennas.

Method and system for target detection using MIMO radar

A method and system for joint radar communication for automotive applications. The system carries out the method and includes a transmitter transmitting a radar signal, which signal has a phase-modulated continuous waveform and includes information encoded by phase modulation, a receiver, spaced from the transmitter, receiving the signal, and the receiver detecting the information from the received signal. In order to provide an efficient concept for joint radar-communication for automotive applications, the signal is a multi-carrier phase-modulated continuous waveform having a plurality of carrier frequencies and the information is encoded onto each carrier frequency.

Method for joint radar-communication

A method for obtaining an adaptive angle-Doppler ambiguity function (AF) for a target using multiple-input-multiple-output (MIMO) radar that includes a transmit antenna array having a plurality of antenna elements. The method includes generating transmit signals for transmission by the transmit antenna array, the transmit signals defining at least a first transmit trajectory of a phase center within the transmit antenna array; transmitting the transmit signals using the transmit antenna array and receiving receive signals from the target, the receive signals resulting from the incidence of the transmit signals upon the target; and obtaining at least an angle-Doppler ambiguity function (AF) from the receive signals. The first transmit trajectory is such that, in operation, the phase center undergoes random phase center motion (PCM), such that a phase center position within the transmit antenna array varies randomly with time. A system for obtaining an AF is also disclosed.

Method and system for obtaining an adaptive angle-doppler ambiguity function in MIMO radars

A simple construction for a family of non-uniform APSK constellations by the radial isomorphism between squares to circles is provided. The mutual information values indicate gains of at least 0.5 dB up to 1.5 dB with respect to the state of the art, such as the DVB-S2X constellations with 256 symbols. The invention also provides for a low-complexity detector of high-order modulated signals.

Data transmission method and device using non-uniform APSK constellations

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Luxembourg, Luxembourg

Bhavani Shankar Mysore Rama Rao