DETECTOR FOR PHASE DIFFERENCE IN RECEIVED SIGNAL

摘要

PROBLEM TO BE SOLVED: To eliminate the overlapped part of a signal processing operation and to simplify the constitution of a whole detector, in which signals from a transmission source are received in a plurality of receiving parts and in which the phase difference in the received signals between the receiving parts is found. SOLUTION: A transmission signal from the transmission source is received by a first antenna 11a. The phase error between the phase of the received signal and an estimated phase is found by a signal processing part 12a. A signal processing control part, which controls the estimated phase in such a way that the phase error becomes small and which performs phase tracking operation is istalled. The signal from the transmission source is received further by a second antenna 11b. The phase error between the phase of the received signal and the estimated phase is found by a signal processing part 12b. Phase errors are found as the phase difference in the received signals between the first and second antennas.