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US 9,755,769 B2Granted
Method for estimating a radioelectric propagation channel
AssigneeAirbus DS GmbH
InventorPhilippe Mege
Life of this patent
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AssigneeAirbus DS GmbH
InventorPhilippe Mege
Estimating the term…
A method estimates a channel for radioelectric propagation between a transmitter and a receiver. The transmitter transmits a signal including frames that each use N1 frequency subcarriers, over each of which N1 symbols are transmitted, wherein, among the set of symbols, certain symbols, referred to as pilot symbols, are known to the receiver. The method implemented in the receiver includes; determining an overall intermediate covariance matrix M2 of the channel that embodies a time profile of the channel, which profile is symmetrical and centered on the time synchronization position, and a frequency profile of the channel, which profile is symmetrical and centered on the frequency synchronization position; calculating a vector for an intermediate channel C on the basis of the predetermined overall intermediate covariance matrix M2; and estimating the channel on the basis of the calculated vector for the intermediate channel C′.
A method for estimating a radio propagation channel between a transmitter and a receiver, where the transmitter transmits a signal including frames each of which uses Nf frequency subcarriers over each of which Nt symbols are transmitted, where among all the symbols, certain pilot symbols, are known to the receiver, where the signal is synchronised by the receiver from a timing synchronisation position and a frequency synchronisation position, wherein a temporal profile of the channel is symmetrical and centred around an effective central timing position τmean different from the timing synchronisation position, wherein a frequency profile of the channel is symmetrical and centred around an effective central frequency position fmean different from the frequency synchronisation position, and wherein the method, implemented by the receiver, comprises:
A receiver device configured to receive from a transmitter at least one signal transmitted through a radio propagation channel, wherein the signal includes frames each using Nf frequency subcarriers over each of which Nt symbols are transmitted, wherein from among all the symbols, certain pilot symbols, are known to the receiver device, wherein the signal is synchronised by the receiver device from a timing synchronisation position and from a frequency synchronisation position, wherein the temporal profile of the channel is symmetrical and centred around an effective central timing position τmean separate from the timing synchronisation position, and wherein the frequency profile of the channel is symmetrical and centred around an effective central frequency position fmean separate from the frequency synchronisation position, the receiver device comprising:
Dependencies are inferred from the claim text.