domain sampling
3.Time-domain Continuous FIR Filter Based Electronic Instrument Transducers Sampling Data Inter-substation Synchronization Arithmetic
5.The causes of synchronous error were analyzed,and calculation models for the error of signal frequency-domain analysis induced by synchronous error were worked out. The frequency-domain calculation and analysis of the error of synchronous sampling by software were carried out based on a study of standard sine signal and sine signal with harmonic disturbances(the actual current and voltage signal in the power system).
6.Synchronic digital audio watermarking algorithm based on quantizing wavelet domain parameters is presented, experimentations show the algorithm is robust to several attacks such as Guass-yawp、 lossy compression、 re-quantization and re-sampling.
8.The transient analysis and simulation studies in time-domain showed that the transient capacitance current of busbar is unable to be caught due to the limitation of the given sampling frequency, therefore the transient current singularity of the fault line and the non-fault line will approximate, which prevents to identify the fault line with the criterion calculation result of transient current protection.
10.Based on the principle of random sampling of DSO in the time-domain, two ways (“time amplifying in dual slope integral” and “time?voltage convert”) are implemented to measure the time between the system trigger and writing clock.
