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Á¦1Àå Digital Signal Processing, µðÁöÅÐ ½Åȣ󸮶õ?, DSPÀÇ Æ¯Â¡, µðÁöÅÐ ½Åȣó¸®ÀÇ ¸ñÀû, 1) ½ÅÈ£ º¹¿ø(signal restoration), 2) ½ÅÈ£ ÇØ¼®(signal analysis), 3) Á¤º¸ ÃßÃâ(information extraction), 4) ½ÅÈ£ÀÇ ÇÕ¼º(signal synthesis) ¹× ºÎȣȭ(signal coding), 󸮽ýºÅÛÀÇ ½ÇÇö ¹æ¹ý, µðÁöÅÐ ½Åȣó¸®ÀÇ ÀÀ¿ëºÐ¾ß, µðÁöÅÐ ½Åȣó¸®ÀÇ ÇöȲ, , Á¦2Àå How DSPs are Different from Other Microprocessors, ÇÁ·Î¼¼¼­ ºÐ·ù, 1) ¸¶ÀÌÅ©·ÎÇÁ·Î¼¼¼­(microprocessor), 2) ¸¶ÀÌÅ©·ÎÄÜÆ®·Ñ·¯(micro controler), 3) RISC(reduced instruction set computer)ÇÁ·Î¼¼¼­ , 4) DSP ÇÁ·Î¼¼¼­(Digital Signal Processor), 5) ÇÁ·Î¼¼¼­µé°£ÀÇ °ü°è, DSPs(µðÁöÅÐ ½Åȣó¸® ÇÁ·Î¼¼¼­) ÇöȲ, , Á¦3Àå Hardware architecture for signal processing, DSPs(Digital Signal Processor)ÀÇ º¯È­, 1) Æù ³ëÀ̸¸ ±¸Á¶, 2) Harvard architecture, 3) Super Harvard architecture, 4) Typical DSP architecture, DSP(Digital Signal Processing) ChipsÀÇ ±¸Á¶Àû Ư¡, 1) Fast hard-wired multiplier/accumulator, 2) Barrel Shifter, 3) Multi-Bus Structure, 4) Instruction Pipeline, 5) Multiple Unit, 6) Special Instructions, 7) Loop Control, Comparisons with Microprocessors, DSP(Digital Signal Processor) ChipÀÇ ºÐ·ù, , Á¦4Àå ÇöÀç »ç¿ëµÇ°í ÀÖ´Â DSPs 4Á¾ SPEC, Highest Performance Fixed-Point Digital Signal Processor (DSP) TMS320C6201 at TI, 16-Bit Fixed-Point DSP Microprocessors with On-Chip Memory of Analog Device, Optimized for digital cellular infrastructure applications¡¡at Lucent, (speech coding, speech compression, and channel coding), High Performance DSP56300 Core at Motorola, , Á¦5Àå DSPsÀÇ ¹Ì·¡, DSPsÀÇ ¹ßÀü °úÁ¤, DSPsÀÇ ¹ßÀü µ¿Çâ ¹× Àü¸Á, 1) ¹ü¿ë DSPs¿¡¼­ Àü¿ë DSPs·Î, 2) º´·Äó¸® ¶Ç´Â ¸ÖƼÇÁ·Î¼¼¼­ ±â´É - Åë½Å±â´É °­È­, 3) ÃÊ°í¼º´ÉÈ­ - 200 MHz / 2000 MIPS ÀÌ»ó±îÁö ½Ç¿ëÈ­, ´ë¿ë·® ¸Þ¸ð¸® ³»Àå, 4) 5.0V¿¡¼­ 3.3V, 2.5V, 1.8V·Î ÀúÀü¾ÐÈ­ - ¼ÒºñÀü·Â °¨¼Ò, 5) ¿ì¼öÇÑ ¼ÒÇÁÆ®¿þ¾î °³¹ßÅø Áö¿ø, ¹ßÃé¹® (Digital Signal Processing Solutions - Code Composer Studio), , , FileSize : 1480K
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Á¦1Àå Digital Signal Processing µðÁöÅÐ ½Åȣ󸮶õ? DSPÀÇ Æ¯Â¡ µðÁöÅÐ ½Åȣó¸®ÀÇ ¸ñÀû 1) ½ÅÈ£ º¹¿ø(signal restoration) 2) ½ÅÈ£ ÇØ¼®(signal analysis) 3) Á¤º¸ ÃßÃâ(information extraction) 4) ½ÅÈ£ÀÇ ÇÕ¼º(signal synthesis) ¹× ºÎȣȭ(signal coding) 󸮽ýºÅÛÀÇ ½ÇÇö ¹æ¹ý µðÁöÅÐ ½Åȣó¸®ÀÇ ÀÀ¿ëºÐ¾ß µðÁöÅÐ ½Åȣó¸®ÀÇ ÇöȲ Á¦2Àå How DSPs are Different from Other Microprocessors ÇÁ·Î¼¼¼­ ºÐ·ù 1) ¸¶ÀÌÅ©·ÎÇÁ·Î¼¼¼­(microprocessor) 2) ¸¶ÀÌÅ©·ÎÄÜÆ®·Ñ·¯(micro controler) 3) RISC(reduced instruction set computer)ÇÁ·Î¼¼¼­ 4) DSP ÇÁ·Î¼¼¼­(Digital Signal Processor) 5) ÇÁ·Î¼¼¼­µé°£ÀÇ °ü°è DSPs(µðÁöÅÐ ½Åȣó¸® ÇÁ·Î¼¼¼­) ÇöȲ Á¦3Àå Hardware architecture for signal processing DSPs(Digital Signal Processor)ÀÇ º¯È­ 1) Æù ³ëÀ̸¸ ±¸Á¶ 2) Harvard architecture 3) Super Harvard architecture 4) Typical DSP architecture DSP(Digital Signal Processing) ChipsÀÇ ±¸Á¶Àû Ư¡ 1) Fast hard-wired multiplier/accumulator 2) Barrel Shifter 3) Multi-Bus Structure 4) Instruction Pipeline 5) Multiple Unit 6) Special Instructions 7) Loop Control Comparisons with Microprocessors DSP(Digital Signal Processor) ChipÀÇ ºÐ·ù Á¦4Àå ÇöÀç »ç¿ëµÇ°í ÀÖ´Â DSPs 4Á¾ SPEC Highest Performance Fixed-Point Digital Signal Processor (DSP) TMS320C6201 at TIԤ-Bit Fixed-Point DSP Microprocessors with On-Chip Memory of Analog Device Optimized for digital cellular infrastructure applications¡¡at Lucent (speech coding, speech compression, and channel coding) High Performance DSP56300 Core at Motorola Á¦5Àå DSPsÀÇ ¹Ì·¡ DSPsÀÇ ¹ßÀü °úÁ¤ DSPsÀÇ ¹ßÀü µ¿Çâ ¹× Àü¸Á 1) ¹ü¿ë DSPs¿¡¼­ Àü¿ë DSPs·Î 2) º´·Äó¸® ¶Ç´Â ¸ÖƼÇÁ·Î¼¼¼­ ±â´É - Åë½Å±â´É °­È­ 3) ÃÊ°í¼º´ÉÈ­ - 200 MHz / 2000 MIPS ÀÌ»ó±îÁö ½Ç¿ëÈ­, ´ë¿ë·® ¸Þ¸ð¸® ³»Àå 4) 5.0V¿¡¼­ 3.3V, 2.5V, 1.8V·Î ÀúÀü¾ÐÈ­ - ¼ÒºñÀü·Â °¨¼Ò 5) ¿ì¼öÇÑ ¼ÒÇÁÆ®¿þ¾î °³¹ßÅø Áö¿ø ¹ßÃé¹® (Digital Signal Processing Solutions - Code Composer Studio)
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µðÁöÅÐ ½Åȣó¸®ÀÇ ¸ñÀûƒ) ½ÅÈ£ º¹¿ø(signal restoration) °üÃø½ÅÈ£¿¡¼­ ÀâÀ½°ú °°Àº ºÒÇÊ¿äÇÑ ¼ººÐÀ» Á¦°ÅÇÏ¿© ½ÅÈ£ º»·¡ÀÇ ÇüŸ¦ º¹¿øÇϱâ À§ÇÏ¿© µðÁöÅÐ ½Åȣ󸮸¦ Çϸç ÀâÀ½Á¦°Å¸¦ ¸ñÀûÀ¸·Î ÇÏ´Â ÇÊÅ͸µ(filtering)󸮰¡ Áß½ÉÀûÀÎ ºÐ¾ßÀÌ´Ù.„) ½ÅÈ£ ÇØ¼®(signal analysis) °üÃø½ÅÈ£ ÀÚü·ÎºÎÅÍ ±× ¼ºÁúÀ» ±â¼úÇϰí Àִ Ư¡À» ÃßÃâÇÏ´Â ÀÏÀ» ÇÒ ¼ö ÀÖÀ¸¸ç °ÅÀÇ ´ëºÎºÐÀº Åë°èÀû ¿ä¼Ò(parameter)ÀÇ ÃßÃâ·Î¼­, È®·ü¹ÐµµÇÔ¼ö¿Í °¢Á¾ Åë°è·®ÀÇ ÃßÁ¤ µîÀÌ´Ù. ƯÈ÷ ½ºÆåÆ®·³ ÇØ¼®À̳ª »ó°üÇØ¼®Àº µðÁöÅÐ ½Åȣó¸®ÀÇ Áß½ÉÀûÀÎ ºÐ¾ßÀÌ´Ù.…) Á¤º¸ ÃßÃâ(information extraction) °üÃø ½ÅÈ£¿¡ Æ÷ÇԵǾî ÀÖ´Â Á¤º¸¸¦ ÃßÃâÇϰųª, ȤÀº Àü󸮿¡¼­ ½ÅÈ£¸¦ Æí¸®ÇÑ ÇüÅ·Πº¯È¯ÇÏ´Â °ÍÀ¸·Î ÆÐÅÏ ÀνÄÀ̳ª Ư¡ ¿ä¼ÒÀÇ ÃßÁ¤ µî¿¡ ÀÌ¿ëµÈ´Ù.†) ½ÅÈ£ÀÇ ÇÕ¼º(signal synthesis) ¹× ºÎȣȭ(signal coding) ±âÈ£ ȤÀº ¿ä¼Ò(parameter)µé·ÎºÎÅÍ ½ÅÈ£¸¦ ÇÕ¼ºÇÏ´Â ÀÏÀÌ´Ù. ¿¹¸¦ µé¸é À½¼ºÀ̳ª ¿µ»óÀÇ ÇÕ¼ºÀ» µé ¼ö ÀÖ´Ù. ±×¸®°í °í´É·ü ½ÅÈ£ºÎȣȭ(signal coding)¸¦ ¸ñÀûÀ¸·Î Çϴ ó¸®(¿¹Ãø, Á÷±³º¯È¯, ¿òÁ÷ÀÓ º¸»ó, ¾çÀÚÈ­ µî)µµ µðÁöÅÐ ½Åȣó¸®ÀÇ¡¦(»ý·«)



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