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use Delay

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This commit is contained in:
Ahmet Inan 2020-10-09 16:24:33 +02:00
commit 0ccdcfd979
1 changed files with 13 additions and 24 deletions
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37
sma.hh
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@ -7,6 +7,7 @@ Copyright 2019 Ahmet Inan <inan@aicodix.de>
#pragma once
#include "kahan.hh"
#include "delay.hh"
#include "swa.hh"
namespace DSP {
@ -45,48 +46,36 @@ public:
template <typename TYPE, typename VALUE, int NUM, bool NORM = true>
class SMA2
{
TYPE hist_inp[NUM];
TYPE hist_sum;
int hist_pos;
Delay<TYPE, NUM> delay;
TYPE sum;
public:
SMA2() : hist_sum(0), hist_pos(0)
SMA2() : sum(0)
{
for (int i = 0; i < NUM; ++i)
hist_inp[i] = 0;
}
TYPE operator () (TYPE input)
{
hist_sum += input - hist_inp[hist_pos];
hist_inp[hist_pos] = input;
if (++hist_pos >= NUM)
hist_pos = 0;
sum += input - delay(input);
if (NORM)
return hist_sum / VALUE(NUM);
return hist_sum;
return sum / VALUE(NUM);
return sum;
}
};
template <typename TYPE, typename VALUE, int NUM, bool NORM = true>
class SMA3
{
TYPE hist_inp[NUM];
Kahan<TYPE> hist_sum;
int hist_pos;
Delay<TYPE, NUM> delay;
Kahan<TYPE> sum;
public:
SMA3() : hist_sum(0), hist_pos(0)
SMA3() : sum(0)
{
for (int i = 0; i < NUM; ++i)
hist_inp[i] = 0;
}
TYPE operator () (TYPE input)
{
hist_sum(-hist_inp[hist_pos]);
hist_inp[hist_pos] = input;
if (++hist_pos >= NUM)
hist_pos = 0;
sum(-delay(input));
if (NORM)
return hist_sum(input) / VALUE(NUM);
return hist_sum(input);
return sum(input) / VALUE(NUM);
return sum(input);
}
};