基于ZYNQ-7000和AD9361的軟件無線電平臺設(shè)計

打開文本圖片集

Design of software-defined radio platform based on ZYNQ-7ooo and AD9361

ZHUWenrui，ZHOUHua，DONGYu ScholofEleicdoatiEiiUesittioloj

Abstract：Duetothelimitationsof thetraditionalradioplatforms，suchaslackofflexibility，non-customizabilityandpoor interference resistance，aradio frequency transceiver system based on the maincontrol chip ZYNQ-70O seriesand RFchip AD9361isdesignedandvalidated.Inthissystem，azero-IF（intermediatefrequency）architecture，supportinganoperating frequency range of 7O MHz to6 GHz and a channel bandwidth range of 200kHz to 56MHz ， is employed. This system is suitableforvariousaplicationscenarios.Inthedesignunit，thesectionofprogrammablelogic（PL）ontheFPGAisresponsible forgeneratingthebasebandsigalandconvertingthedataprotocolAD9361.Inthesectionofbus，AXI_Stream isutliedto facilitatebulk datastoragefromthePLsideintotheDDR（doubledatarate）ofthePS（processing system）side.Inthe verificationunit，aspectrumanalyzerwasusedtoexaminethefrequencyoftheRFoutputsignal，andtheresultsconfiredits compliancewiththeprincipleoffrequency mixing.Additionally，bymeasuringthedatatransferratefrom thePLsidetothePS side，anadaptiveDMAtransferrateadjustment mechanismwasproposed.Thismechanismdynamicalladjusts thetransferrate basedonthevolumeofthedatatransferedinasingleoperation.Theresultsindicatethatthedata transferrateisdirectly proportional tothedatatransmisionvolume，maintainingarateofapproximately312.5Mb/s，whichmeetsthesystem performance requirements.

Keywords：software-defined radio; ZYNQ-7Oo0; AD9361; RF channel; communication frequency point; AXI bus

0 引言

第五代（5G）蜂窩網(wǎng)絡(luò)[自2020年初問世以來，其應(yīng)用范圍廣泛，涵蓋了眾多新技術(shù)，如大規(guī)模MIMO2毫米波通信、高頻段傳輸4和高數(shù)據(jù)速率等。（剩余8507字）