AC signal analyzing apparatus, AC signal analyzing method, and program

摘要

The signal analyzing apparatus includes a plurality of delay units connected in series including at least a first delay unit, a second delay unit, a third delay unit, and a fourth delay unit, and in order from the input side, the first delay unit, the A second delay unit, the third delay unit, and the fourth delay unit are disposed, and for a predetermined point on a plurality of delay units connected in series, the second delay unit and the third delay unit Are symmetrically arranged and the first delay unit and the fourth delay unit are arranged symmetrically, and the output value of the second delay unit and the input value of the third delay unit A first outer product computing unit that computes a first outer product value based on a product of the product of the product of the input value of the first delay unit and the product of the input value of the second delay unit and the output value of the third delay unit, And the product of the input value of the first delay unit and the output value of the fourth delay unit and the product of the output value of the fourth delay unit and the input value of the fourth delay unit, A second outer product computing unit that computes a second outer product value based on the first outer product value computed by the first outer product computing unit and the second outer product computing unit that computes a second outer product value based on the first outer product computed by the first outer product computing unit, And a frequency computing unit for computing the frequency of the AC signal by applying the value to the AC signal.