| 摘要 |
PROBLEM TO BE SOLVED: To propose a new technique for correlation integration that is different from any conventional technique.SOLUTION: In a baseband processing circuit unit 20, a sample memory 21 stores a received data string resulting from the sampling of signals received by an RF receiver circuit unit at prescribed sampling time intervals. A data string inferring unit 22 infers, on the basis of the received data string stored in the sample memory 21, an inferred data string to be obtained by sampling received signals shifted by a given shift time length from the timing of sampling the received data string. A correlation arithmetic operation unit 23 performs arithmetic operation of correlation between the inferred data string inferred by the data string inferring unit 22 and replica codes, and an integrating unit 24 integrates the results of correlation arithmetic operation by the correlation arithmetic operation unit 23 at given time intervals of integration. |
