FreeCalypso > hg > fc-magnetite
annotate src/cs/layer1/gtt_include/ctm/m_sequence.h @ 232:cbee8f31694a
l1_rf12.c: rf_850 Tx calchan bogon fixed
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 12 Mar 2017 20:58:28 +0000 |
parents | 945cf7f506b2 |
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rev | line source |
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1 /* |
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2 ******************************************************************************* |
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3 * |
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH |
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5 * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100 |
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6 * |
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7 * The program(s) may be used and/or copied only with the |
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8 * written permission from Ericsson or in accordance |
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9 * with the terms and conditions stipulated in the agreement or |
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10 * contract under which the program(s) have been supplied. |
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11 * |
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12 ******************************************************************************* |
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13 * |
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14 * File : m_sequence.h |
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15 * Purpose : Calculation of m-sequences |
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16 * (maximum-length sequecnes or pseudo noise) |
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17 * |
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18 ******************************************************************************* |
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19 */ |
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20 |
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21 #ifndef m_sequence_h |
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22 #define m_sequence_h "$Id: $" |
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23 |
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24 /* |
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25 ******************************************************************************* |
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26 * INCLUDE FILES |
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27 ******************************************************************************* |
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28 */ |
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29 |
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30 |
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31 /* |
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32 ******************************************************************************* |
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33 * DECLARATION OF PROTOTYPES |
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34 ******************************************************************************* |
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35 */ |
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36 |
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37 /* -------------------------------------------------------------------- */ |
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38 /* function m_sequence() */ |
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39 /* ********************* */ |
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40 /* Calculates one period of an m-sequence (binary pseudo noise). */ |
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41 /* The sequence is stored in the vector sequence, which must have a */ |
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42 /* of (2^r)-1, where r is an integer number between 2 and 10. */ |
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43 /* Therefore, with this release of m_sequence, sequences of length */ |
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44 /* 3, 7, 15, 31, 63, 127, 255, 511, or 1023 can be generated. */ |
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45 /* The resulting sequence is bipolar, i.e. it has values -1 and +1. */ |
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46 /* -------------------------------------------------------------------- */ |
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47 |
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48 void m_sequence(WORD16 *sequence, WORD16 length); |
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49 |
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50 |
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51 #endif |
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53 |