基于FPGA的示波器波形插值改进技术

A Improved Interpolation Algorithm Applied In Digital Oscilloscope Wave Generation Based on FPGA

介绍基于FPGA实现波形线性和正弦内插改进技术。一般示波器受制于模数转换器芯片的工作速率,实时采集的数据在小时基档时,采集点很少,很难看到比较细节的波形。此时可以通过数字线性和正弦内插改进技术很好的恢复和重建原信号。

A improved linear and sine interpolation algorithm applied in digital oscilloscope wave generation is introduced. Normal digital oscilloscope is limited by sampling clock of ADC. And the sampled points are few in small time base. So the wave is rough and can’t accord with real signal. The improved linear and sine interpolation algorithm can resume and rebuild the better signal wave.