Method and device for motion-compensated noise evaluation in...

Details Method and device for motion-compensated noise evaluation in... Method and device for motion-compensated noise evaluation in...

2005-05-25

2009-02-24

Pathak, Sudhanshu C (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S240010, C375S240120

Reexamination Certificate

active

07496165

ABSTRACT:
A device for motion-compensated noise evaluation for mobile wireless transmission systems, in which reference symbols are sent out by a transmitter, includes storage devices for reference symbols sent out in direct or indirect temporal succession and furnished to a receiver. The device computes a static component of the received reference symbols by forming a statistical moment from at least some of the reference symbols saved in the storage devices. A dynamic component of the received reference symbols is determined from the difference of at least two reference symbols saved in the storage devices, and a prediction device determines a predicted value for the next reference symbol supplied by the receiver by using the static component and the dynamic component of the reference symbols. A prediction error is determined from the difference between the predicted reference symbol and the next reference symbol supplied by the receiver, and an estimate for the noise is computed. The prediction device is adapted through the prediction error to time changes in the transmission channel.

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