Title :
A Method for Calculating Total Harmonic Distortion of Digital Sinusoidal Waveform
Author :
Min, Liu ; Yalu, Li
Author_Institution :
Chinese Acad. of Space Technol., Beijing
Abstract :
A digital sinusoidal waveform is defined as a periodic waveform whose amplitude and time can be quantified. How do the bit number N of digital-to-analog converter (DAC) and the number M of discrete points in one period influence the total harmonic distortion (THD) of the sinusoidal wave synthesized by digital waveforms? We propose in this paper a theoretical formula representing the relation of THD, M and N on the basis of time-domain analysis and give the calculation results and the experimental data. The novel method presented in this paper can also be applied to harmonic analysis.
Keywords :
digital-analogue conversion; harmonic distortion; time-domain analysis; DAC; THD; digital sinusoidal waveform; digital-to-analog converter; periodic waveform; time-domain analysis; total harmonic distortion; Circuit testing; Distortion measurement; Electronic equipment testing; Instruments; Postal services; Signal synthesis; Space technology; Time domain analysis; Time measurement; Total harmonic distortion; Digital Waveform; Digital Waveform Synthesis; Total Harmonic Distortion (THD); the sinusoidal wave;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4351075
