| 摘要 |
PROBLEM TO BE SOLVED: To prevent unexpected signal output due to symbol clock deviation.SOLUTION: A reception part 11 receives a signal from an antenna 10, performs frequency conversion and amplification, performs A-D (Analog-to-Digital) conversion and demodulates digital data. An error detection part 13 detects difference between a time interval of prescribed synchronous words and time corresponding to time length of a frame based on a symbol clock as an error. An insertion part 15 inserts the prescribed number of pieces of insertion data to the digital data at a prescribed interval on the basis of an up-sampling rate. An insertion and extraction control part 16 inserts the insertion data to a prescribed position of the up-sampling data or deletes the prescribed insertion data of the up-sampling data every time the error detected for each integrated frame exceeds a prescribed range. A signal reproduction part 17 performs D-A (Digital-to-Analog) conversion of the up-sampling data, removes a high frequency component using an LPF (Low Pass Filter), performs amplification, generates an analog signal and reproduces it. |
