| 摘要 |
<p>PROBLEM TO BE SOLVED: To establish synchronization at a high speed by using each estimate circuit for bit timing, automatic frequency and carrier phase even when no signal is received due to occurrence of fading or blockage or the like. SOLUTION: Reception sections 1, 2, 3 receive a communication signal including prescribed information outputted from a modulator. Correction parameter output sections 4, 7, 8 provide the output of a correction parameter based on the communication signal. Demodulation information output sections 5, 6, 9 output demodulation information based on the communication signal and the correction parameter. Then a detection section 30 detects whether or not prescribed information is included in demodulated information and when the prescribed information is detected, a 1st signal is outputted and when not detected, a 2nd signal is outputted by the detection section 30. Furthermore, storage sections 21, 22, 23 store the correction parameter when the 1st signal is received and output to the stored correction parameter output sections 4, 7, 8 when the 2nd signal is received.</p> |
