1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* file: CreateCcsdsInterleaver.c
Description: Produce an interleaver according to the CCSDS spec.
The calling syntax is:
[alpha] = CreateCcsdsInterleaver( K )
alpha = the interleaver in a length K vector
K = the size of the interleaver
Copyright (C) 2006, Matthew C. Valenti
Last updated on June 24, 2006
Function CreateCcsdsInterleaver is part of the Iterative Solutions
Coded Modulation Library. The Iterative Solutions Coded Modulation
Library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <math.h>
#include <mex.h>
#include <Matrix.h>
#include <stdlib.h>
/* library of functions */
#include "./include/interleaver.h"
/* Input Arguments */
#define INPUT prhs[0]
/* Output Arguments */
#define OUTPUT plhs[0]
/* main function that interfaces with MATLAB */
void mexFunction(
int nlhs,
mxArray *plhs[],
int nrhs,
const mxArray *prhs[] )
{
int DataLength;
double *output_p;
int *alpha_code; /* interleaver */
int i;
/* Check for proper number of arguments */
if (nrhs < 1) {
mexErrMsgTxt("[alpha] = CreateCcsdsInterleaver( K )");
} else if (nlhs > 1) {
mexErrMsgTxt("[alpha] = CreateCcsdsInterleaver( K )");
}
/* initialize the input data */
DataLength = (int) *mxGetPr(INPUT);
if ( !( ( DataLength == 1784 )||( DataLength == 3568 )||( DataLength == 7136 )||( DataLength == 8920 ) ) )
mexErrMsgTxt("CreateCcsdsInterleaver: CCSDS Interleaver size must be 7184, 3568, 7136, or 8920");
/* Create the interleaver */
/* printf( "\nMaking interleaver\n" ); */
alpha_code = (int*)calloc( DataLength, sizeof(int) );
CreateCcsdsInterleaver( DataLength, alpha_code );
/* printf( "Done making the interleaver\n" );
printf( "K = %d\n", DataLength ); */
/* Output encoded data */
OUTPUT = mxCreateDoubleMatrix(1, DataLength, mxREAL);
output_p = mxGetPr(OUTPUT);
for (i=0;i<DataLength;i++) {
output_p[i] = alpha_code[i];
/* printf( "%d", CodeBits[i] ); */
}
/* printf( "\n" ); */
free( alpha_code );
return;
}
|
