Arbitrary Waveform Generator Waveform Input Interface Device And Algorithm Design And Implementation

With the continuous development of electronic information technology, especially in signal and information processing technology, for electronic measuring instruments means of advanced measurement technology, efficiency has put forward higher requirements. As users of the test automation, networking, high efficiency, high reliability, friendly interface, so the constant pursuit of electronic test technology and communications, computer technology convergence trends are becoming evident, the software technology in the Electronic Measurement Technology by accounted for an increasing proportion. With the new digital consumer electronics products continue to emerge, testing equipment machine technology standardization level is rising, gradually to the real-time, high speed, integrated, intelligent direction.AWG in the electronic measurement technology plays an extremely important position, with the test object changes continuously enriched its also put forward higher requirements. At home and abroad Function/Arbitrary Waveform Generator waveform input products mainly through the instrument panel keyboard or the PC, download the output waveform design corresponding waveform voltage signal. The traditional arbitrary waveform generator operating complicated, real-time performance is not very good. With a certain degree of dependence and limitations of the output waveform is not the true sense of the arbitrary waveform. In order to address the shortcomings of traditional arbitrary waveform generator, arbitrary waveform In this paper, the input interface devices in-depth research, integrated the advantages of traditional arbitrary waveform generator, combined with today's computer technology development, design of new arbitrary waveform generator input interface device.The input interface devices designed in this paper can not only meet the rules of the follow-up Design and Implementation of the waveform display, but also can help design an irregular arbitrary waveforms, especially for those who can not give or difficult to give an accurate analytic function of the signal type of project, the user can take advantage of this device directly hand-painted. This design uses a combination of LCD and touch screen to achieve the rendering and display simultaneously, thereby greatly reducing the complexity of the previous arbitrary waveform design calculations and tedious operation. Waveform interface devices is able to intelligently recognize any user input waveform, to realize the validity of test waveform, allowing users to design those who meet the requirements of the engineering signal. The interface device has storage capabilities. The design takes advantage of the improved fast wavelet decomposition and reconstruction algorithm-Mallat algorithm, to achieve the compression of waveform data, reducing the instrument itself, the requirements for storage capacity, while implementation for the follow-up to reproduce the user's arbitrary waveform. This design combines the advantages of traditional arbitrary waveform generator, to overcome its shortcomings, simple, real-time strong, power-down without losing the characteristics of a real sense of achievement in a stand-alone instruments to realize arbitrary waveform curve shape, compression and storage, this design promoted the integration of arbitrary waveform generator and intelligent, so that arbitrary waveform generator equipment to the direction of development of advanced portable devices one step closer.