文件名称:平方环VHDL实现
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- 上传时间:2019-01-23
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文件大小:1.69mb
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数字平方环电路,实现了从BPSK信号中提取相干载波的功能,简单易行,便于实现,并对其进行了数学推导和建模仿真,具有良好的实用价值。平方环以其电路结构简单而得到了广泛应用。但在平方环电路的设计中,由于NCO(或VCO)工作在2ωc频率上,当环路锁定后,其NCO(或VCO)的输出需经过二分频才能得到所需载波。而二分频电路在实现过程中,特别是在对NCO进行数字分频时,用FPGA实现太耗资源。
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压缩包 : CostasLoop.zip 列表 CostasLoop.ucf CostasLoop.vhd CostasLoop.xise ipcore_dir/ ipcore_dir/.lso ipcore_dir/cos2m_xmdf.tcl ipcore_dir/create_atg.tcl ipcore_dir/create_board_lpf.tcl ipcore_dir/create_board_mult.tcl ipcore_dir/create_clock.tcl ipcore_dir/create_clock1.tcl ipcore_dir/create_clock2.tcl ipcore_dir/create_cos2m.tcl ipcore_dir/create_data.tcl ipcore_dir/create_fir_lpf.tcl ipcore_dir/create_lpf.tcl ipcore_dir/edit_board_mult.tcl ipcore_dir/edit_clock.tcl ipcore_dir/edit_clock1.tcl ipcore_dir/edit_clock2.tcl ipcore_dir/edit_cos2m.tcl ipcore_dir/edit_data.tcl ipcore_dir/edit_fir_lpf.tcl ipcore_dir/edit_nco.tcl ipcore_dir/fir_compiler_v5_0.asy ipcore_dir/fir_compiler_v5_0.gise ipcore_dir/fir_compiler_v5_0.mif ipcore_dir/fir_compiler_v5_0.ngc ipcore_dir/fir_compiler_v5_0.sym ipcore_dir/fir_compiler_v5_0.vhd ipcore_dir/fir_compiler_v5_0.vho ipcore_dir/fir_compiler_v5_0.xco ipcore_dir/fir_compiler_v5_0.xise ipcore_dir/fir_compiler_v5_0COEFF_auto0_0.mif ipcore_dir/fir_compiler_v5_0COEFF_auto0_1.mif ipcore_dir/fir_compiler_v5_0COEFF_auto0_2.mif ipcore_dir/fir_compiler_v5_0COEFF_auto0_3.mif ipcore_dir/fir_compiler_v5_0COEFF_auto0_4.mif ipcore_dir/fir_compiler_v5_0COEFF_auto0_5.mif ipcore_dir/fir_compiler_v5_0COEFF_auto0_6.mif ipcore_dir/fir_compiler_v5_0COEFF_auto0_7.mif ipcore_dir/fir_compiler_v5_0filt_decode_rom.mif ipcore_dir/fir_compiler_v5_0_flist.txt ipcore_dir/fir_compiler_v5_0_readme.txt ipcore_dir/fir_compiler_v5_0_xmdf.tcl ipcore_dir/fir_lpf.asy ipcore_dir/fir_lpf.gise ipcore_dir/fir_lpf.ise ipcore_dir/fir_lpf.mif ipcore_dir/fir_lpf.ncf ipcore_dir/fir_lpf.ngc ipcore_dir/fir_lpf.sym ipcore_dir/fir_lpf.v ipcore_dir/fir_lpf.veo ipcore_dir/fir_lpf.vhd ipcore_dir/fir_lpf.vho ipcore_dir/fir_lpf.xco ipcore_dir/fir_lpf.xise ipcore_dir/fir_lpfCOEFF_auto0_0.mif ipcore_dir/fir_lpfCOEFF_auto0_1.mif ipcore_dir/fir_lpfCOEFF_auto0_2.mif ipcore_dir/fir_lpfCOEFF_auto0_3.mif ipcore_dir/fir_lpfCOEFF_auto0_4.mif ipcore_dir/fir_lpfCOEFF_auto0_5.mif ipcore_dir/fir_lpfCOEFF_auto0_6.mif ipcore_dir/fir_lpfCOEFF_auto0_7.mif ipcore_dir/fir_lpffilt_decode_rom.mif ipcore_dir/fir_lpf_flist.txt ipcore_dir/fir_lpf_readme.txt ipcore_dir/fir_lpf_xdb/ ipcore_dir/fir_lpf_xdb/tmp/ ipcore_dir/fir_lpf_xdb/tmp/ise/ ipcore_dir/fir_lpf_xdb/tmp/ise/version ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/Autonym/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/common/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/HierarchicalDesign/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/HierarchicalDesign/HDProject/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/HierarchicalDesign/HDProject/HDProject ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/HierarchicalDesign/HDProject/HDProject_StrTbl ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/PnAutoRun/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/PnAutoRun/Scripts/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/PnAutoRun/Scripts/RunOnce_tcl ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/PnAutoRun/Scripts/RunOnce_tcl_StrTbl ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/ProjectNavigator/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/ProjectNavigator/dpm_project_main/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/ProjectNavigator/dpm_project_main/dpm_project_main ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/ProjectNavigator/dpm_project_main/dpm_project_main_StrTbl ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/ProjectNavigator11/ ipcore_dir/fir_lpf_xdb/tmp/ise/__OBJSTORE__/_ProjRepoInternal_/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/Autonym/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/Autonym/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/bitgen/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/bitgen/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/bitinit/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/bitinit/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/common/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/common/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/cpldfit/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/cpldfit/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/dumpngdio/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/dumpngdio/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/fuse/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/fuse/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/HierarchicalDesign/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/HierarchicalDesign/HDProject/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/HierarchicalDesign/HDProject/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/hprep6/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/hprep6/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/idem/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/idem/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/libgen/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/libgen/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/map/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/map/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/netgen/ ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/netgen/regkeys ipcore_dir/fir_lpf_xdb/tmp/ise/__REGISTRY__/ngc2edif/ ipcore_dir/fir_lpf_xdb/tmp/ise/
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