Angle information estimation of ultra-wideband wireless signals
AssigneeVerity AG
InventorsRaffaello D'Andrea, Anton Ledergerber
Life of this patent
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Abstract
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).
Claims22
A method for estimating angle information of an ultra-wideband radio signal, the method comprising:
- receiving, by means of at least one receiver antenna of a receiving device, said ultra-wideband radio signal,
- deriving a channel impulse response of a propagation channel of said received ultra-wideband radio signal or an envelope function indicative of an envelope of said channel impulse response,
- acquiring, by means of a sensor, sensor information indicative of a state of said receiving device, and
- deriving, by inputting said channel impulse response or said envelope function into a neural network, an angle information probability distribution for said ultra-wideband radio signal, wherein the sensor information indicative of the state of the receiving device is also input into the neural network to improve the accuracy of the angle information probability distribution.
A method for estimating angle information of an ultra-wideband radio signal, the method comprising:
- receiving, by means of exactly one receiver antenna of a receiving device, said ultra-wideband radio signal, wherein said receiver antenna has an angle-dependent transfer function,
- deriving a channel impulse response of a propagation channel of said received ultra-wideband radio signal or an envelope function indicative of an envelope of said channel impulse response,
- deriving, by inputting said channel impulse response or said envelope function into a neural network, an angle information probability distribution for said ultra-wideband radio signal, and
- deriving, using the angle information probability distribution, state information of the receiving device.
Dependencies are inferred from the claim text.