| 摘要 |
The object is to provide a filter circuit as well as a filter adjustment method and a filter adjustment apparatus that can adjust the characteristics of an analog filter by use of a simple configuration. A filter adjustment method of adjusting the characteristics of an analog filter (111) includes supplying a pseudo-random code to the analog filter (111), computing a cross-correlation between an output of the analog filter (111) and the pseudo-random code, and adjusting the characteristics of the analog filter based on the computed cross-correlation.
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