Multirate的技术是SDR的重要内容，一般在DSP书中会有一小段介绍，不过一般是节选Crochiere的内容。所以如果要详细了解该内容，可以参考以下的书籍。
Crochiere, Multirate Digital Signal Processing, Prentice Hall 1983 (336 pages)
P. P. Vaidyanathan, Multirate Systems And Filter Banks, Prentice Hall 1992 (944 pages)
Fredric J. Harris, Multirate Signal Processing for Communication Systems, Prentice Hall 2004 (496 pages)
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