Individual Adaptive Filter only allows one input signal through, so doped with a signal source when there are different types of noise or interference, an individual Adaptive Filter is not a good mix of original signal noise and therefore cannot fully restore the initial signal. Combining adaptive filters introduced precisely to address this issue. This article introduces the basic ideas of Adaptive filter design portfolio illustrates combined Adaptive Filter theory. And a combination filter was introduced in the practical application of spread spectrum technology. By simulating the experiments confirmed the combination filter has good filtering effect.
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