| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a device reproducing a precise mark by processing the output of a signal adder where a reception signal is inputted to a first input, permitting the prediction values of respective user signals to respond to the prediction value of the formed user signal and supplying the signal to the second input of the signal adder. SOLUTION: An inverse diffusing unit 307 inversely diffuses a reception signal in respective blocks and forms the temporary prediction values of nk-bits at respective bit intervals on n-pieces of users. The respective processors 311 of an interference chancellor 310 receive nk-pieces of prediction values of bits, which are received in the respective blocks, through a bus 314. A memory device and a controller 316 output n-pieces of prediction values to a bus 323. The final prediction values of n-pieces of prediction values smoothed by an FIR filter 317 are re-diffused by a diffusion unit 319 and they are added by an adder 320. An adder 321 subtracts a prescribed value obtained by operating the FIR filter 317 and a feed back processor 318 from respective reception signal samples.</p> |
