| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication apparatus and a communication system capable of improving accuracy of channel estimation in MIMO.SOLUTION: The communication apparatus for processing a received signal which may include a transmission signal including a unique word, includes: a signal detection unit for detecting the transmission signal from the received signal; a signal determination unit for determining the detected transmission signal according to a phase rotation amount of the unique word included in the detected transmission signal; a first phase correction unit for correcting a phase of the determined transmission signal on the basis of a phase rotation difference between the phase rotation amount of the unique word included in the determined transmission signal, and a reference phase rotation amount corresponding to the determined transmission signal; a second phase correction unit for correcting an error between the transmission signal in which the phase is corrected based on the phase rotation difference, and an initial value of the phase; and a channel estimation unit for estimating a channel on the basis of the determined transmission signal in which the error of the phase is corrected, and a known signal. |
