现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
19期
60-62
,共3页
欧春湘%杨嘉伟%任晓松
歐春湘%楊嘉偉%任曉鬆
구춘상%양가위%임효송
FIFO%移位寄存器%FPGA%相关器
FIFO%移位寄存器%FPGA%相關器
FIFO%이위기존기%FPGA%상관기
FIFO%shift-register%FPGA%correlator
为了完成高频率下相关器的时分复用，相关器的低频输入数据须通过循环移位寄存器移位。提出了在FPGA中采用多级串联FIFO核实现循环移位寄存器。对上述方案进行FPGA仿真实验，经实测表明基于FIFO的循环移位寄存器工作稳定，能够实时地提供准确数据给时分复用相关器模块。
為瞭完成高頻率下相關器的時分複用，相關器的低頻輸入數據鬚通過循環移位寄存器移位。提齣瞭在FPGA中採用多級串聯FIFO覈實現循環移位寄存器。對上述方案進行FPGA倣真實驗，經實測錶明基于FIFO的循環移位寄存器工作穩定，能夠實時地提供準確數據給時分複用相關器模塊。
위료완성고빈솔하상관기적시분복용，상관기적저빈수입수거수통과순배이위기존기이위。제출료재FPGA중채용다급천련FIFO핵실현순배이위기존기。대상술방안진행FPGA방진실험，경실측표명기우FIFO적순배이위기존기공작은정，능구실시지제공준학수거급시분복용상관기모괴。
Since the low frequency input data of the correlator should be shifted by circulating shift-register to accomplish time division multiplexing of the correlator in high frequency,an implementation method of circulating shift-register which adopts series FIFO (First input first output) core in FPGA is proposed. FPGA simulation of the scheme mentioned above was performed. The results shows that the shift-register based on FIFO works stable and can provide accurate data to the time divi-sion multiplexing correlator.
