Accuracy self-adapting continuous complicated wave form synthesis method

Abstract

The invention discloses a precision self-adaptive continuous complex waveform synthesis method. The equipment of the synthesis method comprises a computer, a general serial interface chip Cy7c68013, a digital signal processor TMS320C6713 and a Sigma-Delta-based decoder chip TLV320AIC23; the computer is connected with a DSP by a USB interface and the general serial interface chip Cy7c68013; the DSP is connected with the decoder chip TLV320AIC23 by a general serial damping interface McBSP. By the precision self-adaptive control, the precision self-adaptive continuous complex waveform synthesis method of the invention can complete the waveform damping area length and waveform data synthesis by the participation of the Core of DSP only during the initialization process; furthermore, during the waveform signal generation period, the signal waveform can be continuously generated without the participation of the Core, thus greatly facilitating the vibration control and improving the control precision and efficiency.

Description

technical field [0001] The invention relates to the technical field of automatic digital waveform synthesis, in particular to a precision adaptive continuous complex waveform synthesis method. Background technique [0002] In a dynamic test system, vibration control requires not only sine, sine frequency sweep, and transient frequency sweep signals, but also random signals, and even shock response reference spectrum signals synthesized by various waveforms calculated during the control process. At present, most of the synthesis algorithms for continuous frequency and accompanying controllable signals use digital signal processors to calculate the amplitude of each sample point in a timely manner, and then send them to the analog-to-digital converter for output. This method completes other tasks at the same time as the digital signal processor Sometimes the waveform distortion problem is caused because the data cannot be sent on time; there are also pre-generated waveform dat...

AI Technical Summary

Problems solved by technology

At present, most of the synthesis algorithms for continuous frequency and accompanying controllable signals use digital signal processors to calculate the amplitude of each sample point in a timely manner, and then send them to the analog-to-digital converter for output. This method completes other tasks at the same time as the digital signal processor Sometimes the waveform distortion problem is caused because the data cannot be sent on time; there are also pre-generated waveform data and stored in a fixed-length buffer, and then send the waveform with a certain clock cycle. This method is not flexible in the amplitude, period, and phase of the waveform. ground control

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