| 摘要 |
An impulse suppression apparatus and method applied in an OFDM system for suppressing the impulse noise of a first time-domain signal are disclosed. The impulse suppression apparatus includes a noise blanker for generating a second time-domain signal through blanking the noise of the first time-domain signal, wherein each absolute value of the second time-domain signal is not greater than a predetermined value, a first Fourier transform unit for performing a Fourier transform on the second time-domain signal to generate a frequency-domain signal, an equalizing module for generating an equalized signal by equalizing each sub-carrier signal of the frequency-domain signal, a decision unit for generating a decision signal according to the equalized signal, and a compensation module for computing the difference between the equalized signal and the decision signal and for generating the output signal through calibrating the equalized signal according to the difference.
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