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22 lines
1.5 KiB
Markdown
22 lines
1.5 KiB
Markdown
This is a work in progress and a long overdue attempt to bring all our DSP code together and make it reusable for our future projects.
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Before using any of this you should enter the tests directory and execute "make".
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This will check if your compiler is able to create binaries that are able to produce correct results when executed.
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What we have included so far:
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### [kahan.hh](kahan.hh)
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When working with [Floating-point arithmetic](https://en.wikipedia.org/wiki/Floating-point_arithmetic) we soon realize, that addition is not necessarily [associative](https://en.wikipedia.org/wiki/Associative_property).
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For example, whenever we need to add values with an ever decreasing magnitude to a running sum with an ever increasing magnitude, the [Kahan summation algorithm](https://en.wikipedia.org/wiki/Kahan_summation_algorithm) comes in handy and helps keeping the error growth small.
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### [window.hh](window.hh)
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Implemented are the follwing [Window functions](https://en.wikipedia.org/wiki/Window_function):
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* [Rectangular window](https://en.wikipedia.org/wiki/Window_function#Rectangular_window)
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* [Hann window](https://en.wikipedia.org/wiki/Window_function#Hann_window)
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* [Hamming window](https://en.wikipedia.org/wiki/Window_function#Hamming_window)
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* [Lanczos window](https://en.wikipedia.org/wiki/Window_function#Lanczos_window)
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* [Gaussian window](https://en.wikipedia.org/wiki/Window_function#Gaussian_window)
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* [Kaiser window](https://en.wikipedia.org/wiki/Window_function#Kaiser_window)
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