Patent classifications
G01S3/60
METHOD AND SYSTEM FOR DETERMINING AN ANGLE OF ARRIVAL OF A RADIOELECTRIC SIGNAL
The invention relates to a method for determining an angle of arrival of a received radioelectric signal implemented by a receiving antenna system including either one rotating antenna having at least two receiving channels, or two rotating antennas with a same speed each having a receiving channel, and having different antenna diagrams. The method includes, in the operational phase, the following calculating and storing a series of ambiguous angle error measurement values obtained from receiving amplitude values of a radioelectric signal coming from an emitting source on said first and second receiving channels, each angle error measurement value being representative of a ratio between receiving amplitude values on said first and second receiving channels, and corresponding to an angular deviation relative to a reference angular value; calculating a convolution function on said angular range tween said series of ambiguous angle error measurement values and a series of theoretical angle error measurement values of said receiving channels previously calculated and stored, determining an angle of arrival of said received radioelectric signal as a function of an estimate of a maximum of said calculated convolution function.
METHOD AND SYSTEM FOR DETERMINING AN ANGLE OF ARRIVAL OF A RADIOELECTRIC SIGNAL
The invention relates to a method for determining an angle of arrival of a received radioelectric signal implemented by a receiving antenna system including either one rotating antenna having at least two receiving channels, or two rotating antennas with a same speed each having a receiving channel, and having different antenna diagrams. The method includes, in the operational phase, the following calculating and storing a series of ambiguous angle error measurement values obtained from receiving amplitude values of a radioelectric signal coming from an emitting source on said first and second receiving channels, each angle error measurement value being representative of a ratio between receiving amplitude values on said first and second receiving channels, and corresponding to an angular deviation relative to a reference angular value; calculating a convolution function on said angular range tween said series of ambiguous angle error measurement values and a series of theoretical angle error measurement values of said receiving channels previously calculated and stored, determining an angle of arrival of said received radioelectric signal as a function of an estimate of a maximum of said calculated convolution function.
CHANNEL-BASED POSITIONING DEVICE, CHANNEL-BASED POSITIONING SYSTEM AND CHANNEL-BASED POSITIONING METHOD
The disclosure provides a channel-based positioning device, a channel-based positioning system and a channel-based positioning method. The channel-based positioning method includes: calculating a plurality of angles of arrival (AoA), a plurality of angles of departure (AoD) and a plurality of time of flight (ToF) of signals according to a plurality of channel state information transmitted from a terminal apparatus to a base station; determining a path type of the signals according to the plurality of AoA, AoD and ToF of the signals; and calculating a position information of the terminal apparatus relative to the base station through a specific algorithm.
CHANNEL-BASED POSITIONING DEVICE, CHANNEL-BASED POSITIONING SYSTEM AND CHANNEL-BASED POSITIONING METHOD
The disclosure provides a channel-based positioning device, a channel-based positioning system and a channel-based positioning method. The channel-based positioning method includes: calculating a plurality of angles of arrival (AoA), a plurality of angles of departure (AoD) and a plurality of time of flight (ToF) of signals according to a plurality of channel state information transmitted from a terminal apparatus to a base station; determining a path type of the signals according to the plurality of AoA, AoD and ToF of the signals; and calculating a position information of the terminal apparatus relative to the base station through a specific algorithm.
Angle information estimation of ultra-wideband wireless signals
The invention relates to a method and device for estimating angle information (50) of a received ultra-wideband wireless signal. Upon reception of a wireless signal emitted from a transmitting device (20) with known sounding sequence, the receiving device (10) estimates the channel impulse response (CIR), selects a portion of the channel impulse response (CIR), and estimates angle information (50) given the angle-dependent antenna transfer functions of either the transmitting device (20), the receiving device (10), or both. For this, the selected portion of the channel impulse response of the signal is fed into a neural network (73) which outputs an angle information probability distribution for the ultra-wideband wireless signal (50).
Angle information estimation of ultra-wideband wireless signals
The invention relates to a method and device for estimating angle information (50) of a received ultra-wideband wireless signal. Upon reception of a wireless signal emitted from a transmitting device (20) with known sounding sequence, the receiving device (10) estimates the channel impulse response (CIR), selects a portion of the channel impulse response (CIR), and estimates angle information (50) given the angle-dependent antenna transfer functions of either the transmitting device (20), the receiving device (10), or both. For this, the selected portion of the channel impulse response of the signal is fed into a neural network (73) which outputs an angle information probability distribution for the ultra-wideband wireless signal (50).
ANGLE INFORMATION ESTIMATION OF ULTRA-WIDEBAND WIRELESS SIGNALS
The invention relates to a method and device for estimating angle information (50) of a received ultra-wideband wireless signal. Upon reception of a wireless signal emitted from a transmitting device (20) with known sounding sequence, the receiving device (10) estimates the channel impulse response (CIR), selects a portion of the channel impulse response (CIR), and estimates angle information (50) given the angle-dependent antenna transfer functions of either the transmitting device (20), the receiving device (10), or both. For this, the selected portion of the channel impulse response of the signal is fed into a neural network (73) which outputs an angle information probability distribution for the ultra-wideband wireless signal (50).
ANGLE INFORMATION ESTIMATION OF ULTRA-WIDEBAND WIRELESS SIGNALS
The invention relates to a method and device for estimating angle information (50) of a received ultra-wideband wireless signal. Upon reception of a wireless signal emitted from a transmitting device (20) with known sounding sequence, the receiving device (10) estimates the channel impulse response (CIR), selects a portion of the channel impulse response (CIR), and estimates angle information (50) given the angle-dependent antenna transfer functions of either the transmitting device (20), the receiving device (10), or both. For this, the selected portion of the channel impulse response of the signal is fed into a neural network (73) which outputs an angle information probability distribution for the ultra-wideband wireless signal (50).