基于FPGA的可调节OFDM发射机设计与实现

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DOI：10.16652/j.issn.1004-373x.2025.17.005引用格式：，.基于FPGA的可调节OFDM发射机设计与实现[J].现代电子技术，2025，48（17）：29-34.

关键词：可调节OFDM；IEEE802.11a协议；软件无线电；FPGA；AD9361；Zynq-7000

中图分类号：TN92-34 文献标识码：A 文章编号：1004-373X（2025）17-0029-06

Adjustable OFDMtransmitterdesign and implementationbasedon FPGA

WANGXiaojun，LIU An （Schoolof InformationScienceandEngineering，HebeiUniversityofSienceandTechnology，ShijazhuangO5oo8，China）

Abstract：Theorthogonal frequencydivision multiplexing （OFDM） system hasnumerous parametersand flexible design， allwing for thecreationof manydiferentOFDMsystemsbasedondiferentapplicationsandchannelenvironments.Inthe designof thetraditionaltrasmiter，thechannelisencodedbyadeterminedcoderate，andthedataismodulatedbyoneof the manydigitalmodulationmethodstoachievethedesignofasingle-ratetransmiter.Inadition，consideringthecomplexand varied situationsfaced bysignal transmissionand the frequentocurence of unexpected events，arateadjustableOFDM transmisionsystemisdesignedandimplementedbycombining multipleencodingandmodulationtechniques.Forthepartof baseband，theOFDMframeformatintheprotocolIEEE8O2.1laisadoptedtodesignandbuildabasebandsignaltrasmision system，soastocompletethetimingsimulation.ForthepartofRF，theAD9361registerisconfiguratedbysoftware，achieving real-time OFDMsignaltransmissionbetweentheAD9361 software-definedradiomoduleandthe Zynq-70o developmentboard. TheadjustablecodingmodulationschemeandAD9361RFchipwithhighflexibilityenhancetheportabilityofthesoftwaredefined radioplatform，simplify the hardwaredesignof theOFDMtransmiter，soithasbroad applicationprospects.

Keywords：adjustable OFDM; protocol IEEE802.11a;software-defined radio; FPGA;AD9361； Zynq-7000

0 引言

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