§4.9.2巴特沃斯高通滤波器BHPF Transfer function of Butterworth lowpass filters: 1 Hu,）=1+D(u,v)/Do2n Hnp(u,v)=1-Hip(u,v) Transfer function of Butterworth highpass 截止频率为D的n阶巴特沃斯高通滤波器(BHPF),其传递函数H(,v)为 H(u,)= 1+[Do/D(u,)]2m u0=e-7+e-T Transfer function of Butterworth lowpass filters: §4.9.2 巴特沃斯高通滤波器BHPF Transfer function of Butterworth highpass 截止频率为D0的n阶巴特沃斯高通滤波器(BHPF),其传递函数H(u,v)为 𝐻(𝑢, 𝑣) = 1 1 + 𝐷 Τ ) 0 𝐷 (𝑢, 𝑣 2𝑛 𝐷(𝑢, 𝑣) = 𝑢 − 𝑀 2 2 + 𝑣 − 𝑁 2 2 1Τ2 𝐻ℎ𝑝(𝑢, 𝑣) = 1 − 𝐻𝑙𝑝(𝑢, 𝑣൯ 𝐻(𝑢, 𝑣) = 1 1 + 𝐷(𝑢, 𝑣 )Τ𝐷0 2𝑛