| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiver with high determination accuracy whether or not a reception signal is a regular signal with the suppression of power consumption at intermittent reception.SOLUTION: The receiver includes: an A/D conversion unit which, at the intermittent reception, oversamples a signal received by a radio unit to convert into a digital signal; a constellation processing unit which converts each of pieces of the sampling data into distribution data on polar coordinates, on the basis of an in-phase component I and an orthogonal component Q of the sampling data sampled by the A/D conversion unit; and a signal determination unit which determines whether or not the signal, received based on the distribution data on the polar coordinates, is a regular signal.SELECTED DRAWING: Figure 1 |
