COMMUNICATION EQUIOMENT AND COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To execute synchronous acquisition by using the storage means small in storage capacity. SOLUTION: The signal of an outgoing line into which a division signal is inserted is received at every time separated by a prescribed interval. A matched filter 12 correlates the reception signal Sin at every prescribed phase shift quantity. A correlation operation is executed for a time longer than the prescribed tine interval. A comparator 13a compares an obtained correlation value Pi with a threshold THD. An adder 15 adds the correlation value Pi (Pi>=THD) and an accumulated addition value P(i) which is previously stored in a storage part 16. An accumulated addition value Pi+P(i) is stored in the storage part 16 again. When the accumulated addition value is generated by adding the values at different time in the prescribed time interval, the respective accumulated addition values are stored by putting them in the plural storage areas installed in the storage part 16. Then, synchronous acquisition is finally executed, based on the accumulated addition value stored in the storage part 16.