文件名称:Composite-frequency-design
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本文介绍了一种复合信号测量系统，该系统基于TMS320F2808实现，用来检测和重建复合频率信号中的主次信号。该系统由计算模块、重建模块和通讯模块组成。为了能在实时运行中自适应地确定采样频率，我们采取了“eCAP+AD”的方法，eCAP模块记录下整形后的复合信号的上升沿过零点时间值并估计出主频率，从而使系统能自动地选取合适的采样频率完成AD采样过程。系统采用了4096点的FFT算法，能够实现高达0.25Hz的频率分辨率，相对分辨率达到0.05 。-This paper introduces a measurement system based on TMS320F2808 to realize the detection and reconstruction of the primary and secondary sinusoidal signals in a mixed-frequency signal. This system consists of the calculation module, the reconstruction module and the communication module. In order to self-adaptively determine the suitable sample frequency during the real-time operation, we proposed a eCAP+AD method. The eCAP module records the time of the rising-edge zero-crossing point of the reshaped mixed signals and estimates the value of the max frequency, hence the system automatically selects the right sample frequency to implement the ADC process. By employing the FFT algorithm with 4096 points, it can realize a frequency resolution as high as 0.25Hz with a relative resolution ratio of 0.05 .
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西安交通大学_复合频率信号频率计_孙志勇
......................................\MATLAB算法验证
......................................\..............\CalTimerPeriod_1.m
......................................\..............\cal_period.m
......................................\..............\fft_script.m
......................................\..............\FFT_script1.m
......................................\..............\gen_signal.m
......................................\..............\time_elape.m
......................................\MULTISIM仿真
......................................\............\spwm_sin仿真.ms10
......................................\............\SPWM产生电路.ms10
......................................\............\SPWM产生电路1.ms10
......................................\............\SPWM逆变电路.ms10
......................................\............\SPWM逆变电路的仿真.ms8
......................................\............\两路SPWM产生电路.ms7
......................................\TI CONTEST.exe
......................................\TI_DSP_CONTEST_FLASH
......................................\....................\DSP280x_common
......................................\....................\..............\cmd
......................................\....................\..............\...\2808_eZdsp_FLASH_lnk.cmd
......................................\....................\..............\...\2808_RAM_lnk.cmd
......................................\....................\..............\...\F2808.cmd
......................................\....................\..............\gel
......................................\....................\..............\...\c2801.gel
......................................\....................\..............\...\c2802.gel
......................................\....................\..............\...\f2801.gel
......................................\....................\..............\...\f28015.gel
......................................\....................\..............\...\f28016.gel
......................................\....................\..............\...\f2802.gel
......................................\....................\..............\...\f2806.gel
......................................\....................\..............\...\f2808.gel
......................................\....................\..............\...\f2809.gel
......................................\....................\..............\...\sim2801.gel
......................................\....................\..............\...\sim28015.gel
......................................\....................\..............\...\sim28016.gel
......................................\....................\..............\...\sim2802.gel
......................................\....................\..............\...\sim2806.gel
......................................\....................\..............\...\sim2808.gel
......................................\....................\..............\...\sim2809.gel
......................................\....................\..............\include
......................................\....................\..............\.......\DSP280x_DefaultIsr.h
......................................\....................\..............\.......\DSP280x_EPwm_defines.h
......................................\....................\..............\.......\DSP280x_Examples.h
......................................\....................\..............\.......\DSP280x_GlobalPrototypes.h
......................................\....................\..............\.......\DSP280x_I2c_defines.h
......................................\....................\..............\.......\DSP280x_SWPrioritizedIsrLevels.h
......................................\....................\..............\.......\IQmathLib.h
......................................\....................\..............\.......\SFO.h
......................................\....................\..............\.......\SFO_V5.h
.................................
......................................\MATLAB算法验证
......................................\..............\CalTimerPeriod_1.m
......................................\..............\cal_period.m
......................................\..............\fft_script.m
......................................\..............\FFT_script1.m
......................................\..............\gen_signal.m
......................................\..............\time_elape.m
......................................\MULTISIM仿真
......................................\............\spwm_sin仿真.ms10
......................................\............\SPWM产生电路.ms10
......................................\............\SPWM产生电路1.ms10
......................................\............\SPWM逆变电路.ms10
......................................\............\SPWM逆变电路的仿真.ms8
......................................\............\两路SPWM产生电路.ms7
......................................\TI CONTEST.exe
......................................\TI_DSP_CONTEST_FLASH
......................................\....................\DSP280x_common
......................................\....................\..............\cmd
......................................\....................\..............\...\2808_eZdsp_FLASH_lnk.cmd
......................................\....................\..............\...\2808_RAM_lnk.cmd
......................................\....................\..............\...\F2808.cmd
......................................\....................\..............\gel
......................................\....................\..............\...\c2801.gel
......................................\....................\..............\...\c2802.gel
......................................\....................\..............\...\f2801.gel
......................................\....................\..............\...\f28015.gel
......................................\....................\..............\...\f28016.gel
......................................\....................\..............\...\f2802.gel
......................................\....................\..............\...\f2806.gel
......................................\....................\..............\...\f2808.gel
......................................\....................\..............\...\f2809.gel
......................................\....................\..............\...\sim2801.gel
......................................\....................\..............\...\sim28015.gel
......................................\....................\..............\...\sim28016.gel
......................................\....................\..............\...\sim2802.gel
......................................\....................\..............\...\sim2806.gel
......................................\....................\..............\...\sim2808.gel
......................................\....................\..............\...\sim2809.gel
......................................\....................\..............\include
......................................\....................\..............\.......\DSP280x_DefaultIsr.h
......................................\....................\..............\.......\DSP280x_EPwm_defines.h
......................................\....................\..............\.......\DSP280x_Examples.h
......................................\....................\..............\.......\DSP280x_GlobalPrototypes.h
......................................\....................\..............\.......\DSP280x_I2c_defines.h
......................................\....................\..............\.......\DSP280x_SWPrioritizedIsrLevels.h
......................................\....................\..............\.......\IQmathLib.h
......................................\....................\..............\.......\SFO.h
......................................\....................\..............\.......\SFO_V5.h
.................................