A MLSE simplification detection method and its device based on MMSE
A detection method and detection device technology are applied in baseband system components, shaping networks in transmitters/receivers, equalizers, etc., which can solve problems such as high complexity and reduce complexity, and achieve reduced complexity and requirements Average, average processing power
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[0031] At first, illustrate the inventive thought:
[0032] (1) the present invention provides a kind of simplified MLSE detection algorithm, comprises the following steps:
[0033] The sequence to be inspected is firstly tested by MMSE to obtain the initial judgment sequence;
[0034] The extension rule based on the distance is used to expand the initial judgment sequence, and derive multiple MLSE pending judgment sequences centered on the initial judgment sequence;
[0035] All sequences to be decided are traversed as determined candidate input sequences, and the sequence with the maximum likelihood to the received sequence is selected as the decision result.
[0036] (2) Certain expansion rules in the above steps can be: bit expansion rules, i.e. Hamming distance expansion rules, expansion parameters P = Ham min g _ dis tan ce ( S , ...
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