宇航计测技术
宇航計測技術
우항계측기술
JOURNAL OF ASTRONAUTIC METROLOGY AND MEASUREMENT
2010年
1期
38-42
,共5页
晏敏%李旭%章兢%侯志春
晏敏%李旭%章兢%侯誌春
안민%리욱%장긍%후지춘
~+坐标旋转计算机算法%数字鉴频%IP%FPGA
~+坐標鏇轉計算機算法%數字鑒頻%IP%FPGA
~+좌표선전계산궤산법%수자감빈%IP%FPGA
~+Coordinate rotation digital computer algorithm%Digital frequency discrimination%Intellectual property%Field Programmable Gate Array
在分析了坐标旋转计算机CORDIC算法原理的基础上,建立了一种用于数字信号处理数字鉴频器的模型,它采用以裁剪后的8051 IP核为控制核心,基于CORDIC算法的流水线结构和差分结构,完成了数字鉴频实时电路的设计,并在FPGA中实现数字鉴频器功能,它能显示两路基带信号I、Q之间的频率差.
在分析瞭坐標鏇轉計算機CORDIC算法原理的基礎上,建立瞭一種用于數字信號處理數字鑒頻器的模型,它採用以裁剪後的8051 IP覈為控製覈心,基于CORDIC算法的流水線結構和差分結構,完成瞭數字鑒頻實時電路的設計,併在FPGA中實現數字鑒頻器功能,它能顯示兩路基帶信號I、Q之間的頻率差.
재분석료좌표선전계산궤CORDIC산법원리적기출상,건립료일충용우수자신호처리수자감빈기적모형,타채용이재전후적8051 IP핵위공제핵심,기우CORDIC산법적류수선결구화차분결구,완성료수자감빈실시전로적설계,병재FPGA중실현수자감빈기공능,타능현시량로기대신호I、Q지간적빈솔차.
This paper presents a digital frequency discrimination structure and designs a real time digital frequency discrimination display circuit on the basis of the principle of CORDIC Algorithm.It uses the revised 8051 IP core as control core and accomplishes the digital frequency discrimination in FPGA and shows the frequency difference between two base band signals I、Q based on the pipelined CORDIC algorithm structure and differential structure.
