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一维离散信号的统计及PIFS混合表示
A Statistics and PIFS Based Description Method for 1-D Digital Signal
【摘要】 许多系统的输出是一维离散信号,本文一般性地研究了该类信号的特点,给出了一种有效的压缩表示方法,在压缩比为10~20倍时,恢复信号的信嗓比仍然是较高的.
【Abstract】 In the realm of DSP(Digital Signal Processing),much attention is focused on finding a good way to compress digital signals.Here we study the general features of 1-D digital signals and explore an efficient hybrid description method based on statistics and PIFS. While the compression ratio is between 10 and 20,the SNR of recovered signals is still quite high.
【关键词】 统计;
PIFS;
仿射交换;
分维;
信号压缩;
【Key words】 Statistics; PIFS(Piecewise Iterated Function System); Affine transform; Fractal dimension; Signal compression;
【Key words】 Statistics; PIFS(Piecewise Iterated Function System); Affine transform; Fractal dimension; Signal compression;
- 【文献出处】 电子学报 ,Acta Electronica Sinica , 编辑部邮箱 ,1997年11期
- 【分类号】TN911.7
- 【下载频次】20