The coating design depends on the concept of equivalent index in symmetrical thin film to reduce pass band ripple of edge filters has been proposed.
文中分析了如何通过对称膜系的等效折射率概念消除干涉截止滤光片的通带波纹。
The high-order multi-band-pass FIR filter designed with this algorithm is featured by big attenuation in stop-band and small ripple in pass-bands.
用该算法设计的高阶多通带滤波器，其幅频响应的阻带衰减很大，而通带波动很小。
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