Mercurial > hg > audiostuff
annotate spandsp-0.0.6pre17/src/v29tx_constellation_maps.h @ 6:22a74b01a099 default tip
implement more meaningful test program
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
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date | Fri, 25 Jun 2010 16:14:50 +0200 |
parents | 26cd8f1ef0b1 |
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rev | line source |
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1 /* |
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2 * SpanDSP - a series of DSP components for telephony |
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3 * |
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4 * v29tx_constellation_maps.h - ITU V.29 modem transmit part. |
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5 * Constellation mapping. |
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6 * |
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7 * Written by Steve Underwood <steveu@coppice.org> |
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8 * |
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9 * Copyright (C) 2008 Steve Underwood |
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10 * |
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11 * All rights reserved. |
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12 * |
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13 * This program is free software; you can redistribute it and/or modify |
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14 * it under the terms of the GNU Lesser General Public License version 2.1, |
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15 * as published by the Free Software Foundation. |
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16 * |
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17 * This program is distributed in the hope that it will be useful, |
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18 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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20 * GNU Lesser General Public License for more details. |
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21 * |
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22 * You should have received a copy of the GNU Lesser General Public |
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23 * License along with this program; if not, write to the Free Software |
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24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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25 * |
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26 * $Id: v29tx_constellation_maps.h,v 1.2 2008/09/04 14:40:05 steveu Exp $ |
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27 */ |
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28 |
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29 #if defined(SPANDSP_USE_FIXED_POINT) |
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30 static const complexi16_t v29_abab_constellation[6] = |
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31 #else |
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32 static const complexf_t v29_abab_constellation[6] = |
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33 #endif |
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34 { |
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35 { 3, -3}, /* 315deg high 9600 */ |
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36 {-3, 0}, /* 180deg low */ |
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37 { 1, -1}, /* 315deg low 7200 */ |
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38 {-3, 0}, /* 180deg low */ |
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39 { 0, -3}, /* 270deg low 4800 */ |
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40 {-3, 0} /* 180deg low */ |
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41 }; |
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42 |
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43 #if defined(SPANDSP_USE_FIXED_POINT) |
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44 static const complexi16_t v29_cdcd_constellation[6] = |
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45 #else |
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46 static const complexf_t v29_cdcd_constellation[6] = |
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47 #endif |
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48 { |
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49 { 3, 0}, /* 0deg low 9600 */ |
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50 {-3, 3}, /* 135deg high */ |
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51 { 3, 0}, /* 0deg low 7200 */ |
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52 {-1, 1}, /* 135deg low */ |
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53 { 3, 0}, /* 0deg low 4800 */ |
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54 { 0, 3} /* 90deg low */ |
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55 }; |
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56 |
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57 #if defined(SPANDSP_USE_FIXED_POINT) |
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58 static const complexi16_t v29_9600_constellation[16] = |
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59 #else |
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60 static const complexf_t v29_9600_constellation[16] = |
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61 #endif |
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62 { |
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63 { 3, 0}, /* 0deg low */ |
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64 { 1, 1}, /* 45deg low */ |
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65 { 0, 3}, /* 90deg low */ |
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66 {-1, 1}, /* 135deg low */ |
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67 {-3, 0}, /* 180deg low */ |
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68 {-1, -1}, /* 225deg low */ |
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69 { 0, -3}, /* 270deg low */ |
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70 { 1, -1}, /* 315deg low */ |
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71 { 5, 0}, /* 0deg high */ |
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72 { 3, 3}, /* 45deg high */ |
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73 { 0, 5}, /* 90deg high */ |
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74 {-3, 3}, /* 135deg high */ |
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75 {-5, 0}, /* 180deg high */ |
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76 {-3, -3}, /* 225deg high */ |
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77 { 0, -5}, /* 270deg high */ |
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78 { 3, -3} /* 315deg high */ |
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79 }; |
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80 |
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81 /*- End of file ------------------------------------------------------------*/ |