二阶巴特沃思模拟低通滤波器的系统函数为<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202011/7611dc42aa114241b5b67ce9e3332152.png" />其通带边界频率为0.2 Hz，通带最大衰减为0.5 dB。用频率变换公式将Hlp(s)转换成高通滤波器Hhp(s)，要求高通滤波器通带边界频率为2 Hz，通带最大衰减为0.5 dB。Hhp(s)=（ ） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202011/b73e5517e2844cc0a48825c808d6acf2.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202011/7c9e92cb2fa54e77a75995db01be819a.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202011/bc80fe732a4b4c79a1861c9fcd4adfe2.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202011/ccb7fac336a44abb9ea3071ec623faee.png" />