echo filter的用法和樣例：
例句
- Using the proposed entropy minimization rule, the parameters of the wavelet filter are optimized.
采用最小熵方法對小波濾波器參數進(jìn)行優(yōu)化。 - A new method for construction of multi-wavelet filter coefficients matrix using orthonormal expansion technique was proposed.
摘要根據正交多小波的特點(diǎn)，提出了一種利用正交擴充來(lái)構造多小波濾波器系數矩陣的方法。
