PURPOSE: To attain excellent reception by including a pattern signal in a radio wave signal in time division multiplex with a data signal at a predetermined interval and extracting a pilot signal subject to time division multiplex by an extract means to eliminate a disturbing signal.
CONSTITUTION: Only a pilot signal is extracted from a symbol sampler output by a pilot sampler 41. The extracted pilot signal is latched sequentially by a shift register 43 and the pilot signal having been already latched is shifted every time a new pilot signal is extracted. The pilot signal latched in the register 43 is fed to corresponding multipliers 451-45n, in which the signal is multiplied with a numeral signal from a numeral generator 46. The result of multiplication is added by an adder 47, a complex conjugate is taken by a complex conjugate circuit 51, from which a resulting phase compensation signal is obtained. Furthermore, the pilot signal latched in the register 43 is squared by multipliers 481-48n, the results are added by an adder 49 and its reciprocal is obtained by a reciprocal circuit 52, from which an amplitude compensation signal is obtained.
MIYATSU KAZUHIRO
EGUCHI HIDEHIKO
