摘要
对正余弦变换的其中两种方法精度及效率进行了对比,虽然在计算效率上折线逼近法不及数值滤波法,但在精度两者不相上下。
The paper contrast two methods of the sine and cosine transform, though the Hankel trans-Form is good at computing efficiency, but they are both good at precision.
出处
《科技信息》
2011年第5期I0157-I0157,共1页
Science & Technology Information
关键词
正余弦变换
数值滤波
折线逼近
Sine and cosine transform
Digital Fihe
Polygon approximate
