Device and method of sequence detection for frequency-shift keying
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United States of America Patent
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Sep 20, 2016
Grant Date -
Nov 26, 2015
app pub date -
May 27, 2015
filing date -
Nov 28, 2012
priority date (Note) -
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Abstract
A device for determining an encoded data sequence as a determined data sequence is provided. The encoded data sequence is encoded by an input signal frequency-modulated in accordance with a modulation rule. The encoded data sequence has a plurality of data elements. The device has a filter unit for filtering the frequency-modulated input signal in order to obtain a first frequency-filtered channel signal and a second frequency-filtered channel signal. Additionally, the device has an evaluation unit configured to associate, for each known data sequence of a quantity of known data sequences, two channel-specific signal-to-noise distance values to this known data sequence. Furthermore, the evaluation unit is configured to select from the plurality of known data sequences a known data sequence as the determined data sequence to which is associated a channel-specific signal-to-noise distance value which is greater than another channel-specific signal-to-noise distance value associated to another one of the known data sequences.
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