baohulu
Community Member
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Posts: 43
china
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hi, all I use filter solution8.1 to synthesize a chebyshev II filter, which is in digital domain, for example, passband 1Hz, sampling clock 64Hz, and stopband ratio 1.5, then see its frequency response. as I know, its spectrum should be from -32Hz to +32Hz, when repeat it. however, in this software, its spectrum is from 0 to 64Hz, why?
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