US Patent 10270543 Signal generating apparatus and signal generating method

Provided is a signal generating apparatus including an inverse characteristic calculation unit that sets an amplitude characteristic of a signal as input data to calculate an inverse characteristic of a transfer function from an inverse characteristic of the amplitude characteristic of the input data, an inverse Fourier transform unit that performs inverse Fourier transform of the inverse characteristic of the transfer function, an impulse response extract unit that extracts points corresponding to a desired number of taps on the basis of a peak of the impulse response obtained by the inverse Fourier transform unit, a power spectrum calculation unit that calculates a power spectrum on the basis of values which are extracted from the impulse response, and a loss value correction unit that corrects a loss value of the power spectrum by using a loss value correction curve.