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Diffstat (limited to 'prog/fourier/ldft.c')
| -rw-r--r-- | prog/fourier/ldft.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/prog/fourier/ldft.c b/prog/fourier/ldft.c new file mode 100644 index 0000000..1420bc8 --- /dev/null +++ b/prog/fourier/ldft.c @@ -0,0 +1,8 @@ +// lying discrete fourier transformation +// this has no mathematical proofs behind it +// key difference is that it operates in a sliding window mode without holding the window buffer itself +// instead it works in a faucet way, with a single scalar complex state for every frequency that you want to monitor stored and operates with this state one sample at a time +// absolute value of the state directly correlates with freqency domain ordinate value +// temelji na diskretni fourierjevi transformaciji in na weighted moving average +// namesto izhodnega vektorja ob množenju ... +// nvm najprej bom poizkusil narediti dft po krščansko, potem se bomo šli glupe optimizacije |