| 摘要 |
There is provided a communication apparatus, including a transmission pattern generation unit that generates a transmission pattern according to a modulation method, a metric calculation unit that calculates an inter-signal distance between a received signal vector of received signals and an estimation vector, which is a product of channel information and the transmission pattern, a maximum likelihood pattern determination unit that determines a maximum likelihood signal pattern from the inter-signal distance calculated by the metric calculation unit, and an error estimation unit that estimates a phase error component and an amplitude error component contained in the received signal vector, wherein the metric calculation unit calculates the inter-signal distance between the received signal vector and the estimation vector by reflecting the phase error component and/or the amplitude error component estimated by the error estimation unit.
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