A Simplified Correlation Index for Fast Real-Time Pulse Shape Recognition

. 2022 Oct 11;22(20):7697. doi: 10.3390/s22207697

Algorithm A1 Pseudocode of HLS IP Cores

Input:
$B U F F E R_S I Z E = 1024$
Input:
$N_C O E F F I C I E N T S = 64$
Input:
$f i f o [N_C O E F F I C I E N T S]$
1:
for i = 0, i < BUFFER_SIZE do ▹ $s a m p l i n g L o o p$
2:
#pragma PIPELINE
3:
for j = N_COEFFICIENTS $- 1$ , $j \geq 0$ do ▹ $f i f o L o o p$
4:
if j = 0 then
5:
$f i f o . r e a d (i n S t r e a m)$
6:
end if
7:
for k = 0, k < N_COEFFICIENTS do ▹ $a v g L o o p$
8:
$m e a n V a l \leftarrow f i f o [k]$
9:
end for
10:
$m e a n V a l \leftarrow m e a n V a l / N_C O E F F I C I E N T S$
11:
$t h i s R \leftarrow P A T T E R N_C O E F F_L I S T [j] * (f i f o [j] - m e a n V a l)$
12:
if j = N_COEFFICIENTS - 1 then
13:
$c o r r e l a t i o n \leftarrow t h i s R$
14:
else
15:
$c o r r e l a t i o n \leftarrow c o r r e l a t i o n + t h i s R$
16:
end if
17:
if j = 0 then
18:
$d e v i a t i o n \leftarrow 0$
19:
[Deviation code snippet] ▹ $d e v i a t i o n L o o p$
20:
$c o r r e l a t i o n \leftarrow c o r r e l a t i o n / d e v i a t i o n$
21:
$o u t S t r e a m . w r i t e (c o r r e l a t i o n)$
22:
end if
23:
end for
24:
end for