请问sigma dsp帮助文档中的两个算法是否正确

您好:

      可以帮我确认一下sigma dsp帮助文档中的这两个算法是否是正确的呢? 其余算法均正确,只有这两个算法计算出来的值与sigma dsp
软件计算出来的值不同,而有导入芯片后,输出波形也会出现问题.  谢谢

        Bessel HP算法:

Coefficients

alpha = sin(ω0) / ( 2.0 * 1/sqrt(3)) a0 =   1 + alpha a1 =  -2*cos(ω0) a2 =   1 - alpha b0 = -(1 + cos(ω0)) * gainLinear / 2 b1 = -(1 + cos(ω0)) * gainLinear b2 = -(1 + cos(ω0)) * gainLinear / 2

Butterworth HP算法:

Coefficients

alpha = sin(ω0) / ( 2.0 * 1/sqrt(2) ) a0 =   1 + alpha a1 =  -2*cos(ω0) a2 =   1 - alpha b0 = -(1 + cos(ω0)) * gainLinear / 2 b1 = -(1 + cos(ω0)) * gainLinear b2 = -(1 + cos(ω0)) * gainLinear / 2