| 摘要 |
PROBLEM TO BE SOLVED: To provide a soft decision value generation device for generating a soft decision value capable of increasing error correction capability.SOLUTION: A normalized differential receiving system corresponding to a normalized differential code transmission system, using a modulation system whose transmission amplitude is normalized with previous transmission amplitude of a differential signal and having information in amplitude direction, includes: a de-mapping part 32 for generating a first soft decision value for an estimated demodulation bit series based on an Euclidean distance between a normalized differential decoded signal, which is a normalized differential decoded reception signal, and a transmission signal replica; a soft decision value weight generation part 33 for generating soft decision value weight for the first soft decision value using reception signal power of a reception signal and transmission path gain between a transmission side and a reception side; and a multiplier 34 for generating a second soft decision value used for error correction decoding by multiplying the first soft decision value by the soft decision value weight. |
