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¡¾¹Ø¼ü´Ê¡¿FPGA VHDL FSKµ÷ÖÆ

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ABSTRACT

FPGA is a Field-Programmable Gate Array English acronym, that is, field programmable gate array, it is in PAL, GAL, EPLD based on programmable devices such as the further development of the product.It has a programmable flexibility of field programmable logic devices, but also has powerful function gate array devices, high integration and speed advantage, so in the modern communications system design is more widely used.

This paper from the system simulation and FPGA implementation of the FSK modulation study.QuartusII in simulation using VHDL language FSK as the simulation platform, to achieve the system waveform simulation.Implemented by the Altera Corporation CycloneII a processing chip with external circuit to complete FSk the modulation function.Through the VHDL programming language, the language of logic, with QuartusII modules required to generate modulation, FSK modulation the final realization.

The thesis is divided into three chapters, the first chapter introduces the basic principles of FPGA and its applications, development status, also described the characteristics of VHDL language; second chapter describes in detail the basic principle of FSK modulation, includingFSK modulation methods of a variety of knowledge.The third chapter describes the implementation with QuartusII 2FSK modulation algorithm, including the introduction of various functional modules and the simulation results and their significance.

¡¾Key words¡¿FPGA

VHDL FSK modulation

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ǰ ÑÔ .......................................................................................................................................... 4 µÚÒ»Õ FPGAºÍVHDLÓïÑÔ ..................................................................................................... 5

µÚÒ»½Ú FPGA»ù±¾Ô­ÀíºÍÉè¼Æ»ù´¡ ................................................................................ 5

Ò»¡¢ FPGAµÄ»ù±¾¹¤×÷Ô­Àí ................................................................................ 5 ¶þ¡¢ FPGAÉè¼Æ»ù´¡ ............................................................................................ 7 µÚ¶þ½Ú VHDLÓ²¼þÃèÊöÓïÑÔ¼ò½é ................................................................................... 9

Ò»¡¢ VHDLÓïÑÔµÄÓ¦Óà ....................................................................................... 9 ¶þ¡¢ VHDLÓïÑÔµÄÌØµãÓëÉè¼ÆÁ÷³Ì ................................................................. 10 µÚÈý½Ú ±¾ÕÂС½á .............................................................................................................. 12 µÚ¶þÕÂFSKµ÷ÖÆ»ù±¾Ô­Àí ......................................................................................................... 12

µÚÒ»½Ú FSKµ÷ÖÆ»ù±¾¸ÅÊö ............................................................................................... 12

Ò»¡¢ FSK¼ò½é ..................................................................................................... 12 ¶þ¡¢ FSKÐźŵÄʱÓò±í´ï£¨ÒÔ2FSKΪÀý×Ó˵Ã÷£© ....................................... 12 Èý¡¢ 2FSKµ÷ÖÆ»ù±¾Ô­Àí ................................................................................... 13 µÚ¶þ½Ú ±¾ÕÂС½á .............................................................................................................. 14 µÚÈýÕ »ùÓÚQuartusIIµÄFSKµ÷ÖÆËã·¨·ÂÕæÊµÏÖ .................................................................... 15

µÚÒ»½Ú QuartusIIʹÓüò½é ............................................................................................. 15

Ò»¡¢ QuartusIIÈí¼þ¼ò½é ..................................................................................... 15 ¶þ¡¢ QuartusIIÈí¼þÉè¼ÆÁ÷³Ì ............................................................................. 15 Èý¡¢ Éè¼ÆÍ¼½â .................................................................................................... 17 µÚ¶þ½Ú FSKµ÷ÖÆµÄVHDLʵÏÖ ........................................................................................ 21

Ò»¡¢ FSKµ÷ÖÆ×ÜÌå˼· ..................................................................................... 21 ¶þ¡¢ ·ÖƵÆ÷ ........................................................................................................ 21 Èý¡¢ MϵÁвúÉú»ù´øÐźŠ................................................................................. 22 ËÄ¡¢ ÕýÏÒ²¨Ðźŷ¢ÉúÆ÷ .................................................................................... 23 µÚÈý½Ú ±¾ÕÂС½á .............................................................................................................. 23 ½áÂÛ ............................................................................................................................................ 24 ÖÂл ............................................................................................................................................ 25 ²Î¿¼ÎÄÏ× .................................................................................................................................... 26 ¸½Â¼ ............................................................................................................................................ 27

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