Blind adaptive filtering device capable of eliminating narrowband interference and its application
An adaptive filter, narrow-band interference technology, applied in the direction of adaptive network, impedance network, electrical components, etc., can solve problems such as slow convergence speed, and achieve the effect of filtering narrow-band interference signals
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[0027] see image 3 , The blind adaptive filtering device capable of eliminating narrowband interference of the present invention may mainly include: an adaptive filter, a first delay unit, an error calculation unit, and the like.
[0028] The adaptive filter is used to filter the input signal x(n) to output y(n), which may be an FIR filter or an IIR filter. The internal structures of the FIR filter and the IIR filter are already known to those skilled in the art, so they will not be described in detail here; moreover, those skilled in the art can choose different adaptive filters according to different application occasions.
[0029] The first delay unit is coupled to the adaptive filter and configured to delay the output signal of the adaptive filter according to a preset first time extension. Generally, the first time extension can be determined according to an actual application scenario, for example, different time delays can be used when applied to a multi-subband situa...
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