 | dsp-0.2: Digital Signal Processing | Contents | Index |
| DSP.Basic |
|
| Contents |
| delay1 :: Num a => [a] -> [a] |
| delay :: Num a => Int -> [a] -> [a] |
| downsample :: Int -> [a] -> [a] |
| downsampleRec :: Int -> [a] -> [a] |
| upsample :: Num a => Int -> [a] -> [a] |
| upsampleRec :: Num a => Int -> [a] -> [a] |
| upsampleAndHold :: Int -> [a] -> [a] |
| interleave :: [a] -> [a] -> [a] |
| uninterleave :: [a] -> ([a], [a]) |
| pad :: (Ix a, Integral a, Num b) => Array a b -> a -> Array a b |
| toMaybe :: Bool -> a -> Maybe a |
| norm2sqr :: Num a => (a, a) -> a |
| (^!) :: Num a => a -> Int -> a |
delay is the unit delay function, eg,
delay1 [ 1, 2, 3 ] == [ 0, 1, 2, 3 ]
delay is the n sample delay function, eg,
delay 3 [ 1, 2, 3 ] == [ 0, 0, 0, 1, 2, 3 ]
downsample throws away every n'th sample, eg,
downsample 2 [ 1, 2, 3, 4, 5, 6 ] == [ 1, 3, 5 ]
upsample inserts n-1 zeros between each sample, eg,
upsample 2 [ 1, 2, 3 ] == [ 1, 0, 2, 0, 3, 0 ]
upsampleAndHold replicates each sample n times, eg,
upsampleAndHold 3 [ 1, 2, 3 ] == [ 1, 1, 1, 2, 2, 2, 3, 3, 3 ]
merges elements from two lists into one list in an alternating way
interleave [0,1,2,3] [10,11,12,13] == [0,10,1,11,2,12,3,13]
split a list into two lists in an alternating way
uninterleave [1,2,3,4,5,6] == ([1,3,5],[2,4,6])
It's a special case of split.
pad a sequence with zeros to length n
pad [ 1, 2, 3 ] 6 == [ 1, 2, 3, 0, 0, 0 ]