文档介绍：精品毕业论文
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuaounty continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work
精品毕业论文
Abstract
The data acquisition part of this graduation is AT89C51 microcontroller and analog to digital conversion chip the ADC0808 collection system. Potentiometer analog input votagle,AT89C51 control ADC0808 input analog voltage to convert the digital signal, spectrum analysis part is based on the digital spectrum of the heterodyne principle, the system uses a million gates FPGA XlinxVIRTEX-II100, the vibration frequency sweep, mixing, amplification, all the digital realization of low-pass filtering, to extract peak. Control, have the Sunplus the 16 the microcontroller SPCE061A as control core, to achieve the man-machine interface and analog oscilloscope display of the final spectrogram. This paper describes the hardware design and software design, hardware part is a detailed analysis of the connections between the various parts of the circuit schematic of the data acquisition and spectrum analysis, and each module. And lists all of the components, as well as the corresponding procedures for data acquisition and spectrum analysis capabilities. The design has a simple and practical data acquisition and spectrum analysis circuit, low cost, high reliability, extended functionality, and other advantages.
Keywords: data acquisition spectrum analysis AT89C51 AD0808 Sunplus 16-bit microcontroller SPCE061A
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang alre