| 摘要 |
PROBLEM TO BE SOLVED: To supply the diversity of at least 2L over the time and a space and to improve the estimation of a channel by providing a correction circuit which generates the 1st and 2nd symbol estimation value in response to plural pieces of estimation signals and input signals, respectively. SOLUTION: A phase correction circuit 350 receives the input signals Rjm and Rjn on the lines 324 and 326 corresponding to the symbol time included in the same time slot as a pilot symbol that is used for estimation value of a channel. The circuit 350 also receives the channel estimation value of Rayleigh fading parameters αj1* and αj2 corresponding to the 1st and 2nd antennas on the lead wires 302 and 306, respectively. The conjugate complex numbers of the input signals are generated on the lead wires 310 and 332 by the circuits 308 and 330, respectively. These input signals and complex numbers are multiplied by the parameters and added together to generate the symbol estimation value specific to the paths on the output lead wires 318 and 322. Then these generated symbol estimation value are applied to a rake combinational circuit to produce a net soft symbol or a pilot symbol signal. |
