Customer Reviews

Understanding the FFT: A Tutorial on the Algorithm & Software for Laymen, Students, Technicians & Working Engineers

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I bought this book to gain a practical understanding of Fourier Transforms and how to implement them with real data. I already had a conceptual understanding of FTs but not a practical one to where I could use them. This book bridged that gap for me and it seems as though that was among the author's intentions were when he wrote it. I would recommend this book and its companion to anyone in the same position.

This book contains all the necessary info to obtain a working knowledge of DFT and FFT. It contains many GWBASIC example programs so the reader can get a good grasp of what the algorithms are supposed to do. "C" progammers would have no difficulty rewitting these algorithms in "C".
Notes:
(1) most GWBASIC programs run without modification under QBASIC.
(2) the ones that don't run under QBASIC contain graphics statements and are easily fixed using QBASIC help.
(3) if you hate to enter source code, the software is available on diskette from the publisher for a small fee ...(includes GWBASIC and QBASIC examples)
(4) I've discovered "BASIC programmer" web sites where both GWBASIC and QBASIC are available for free download.

I needed to learn some basics about the DFT and FFT. "Understanding the FFT" seemed to be loaded with computer programs. I found very little to help me learn the concepts. "Who Is Fourier? A Mathematical Adventure" by the Transnational College of Lex and "Introduction to Fourier Analysis" by Norman Morrison where the books that helped me the most.