Title:
Composite-frequency-design
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Description: 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
.................................
