【正文】 何體等），同時(shí)可靠地上位機(jī)通信可保證絕大多數(shù)的三維圖形的顯示，如會(huì)展的吉祥物，會(huì)徽等標(biāo)志物的展示；l 三維圖形變換，投影變換，以及Bezier曲線、曲面構(gòu)建三維圖形；l 實(shí)現(xiàn)模擬信號(hào)的采集與量化、相應(yīng)的數(shù)字信號(hào)處理（如FFT變換、FIR數(shù)字濾波器等），制作魔幻音樂，音樂噴泉等娛樂設(shè)施以調(diào)節(jié)會(huì)展現(xiàn)場(chǎng)的娛樂氣氛。系統(tǒng)的軟件主體包括各硬件模塊基本驅(qū)動(dòng)、信號(hào)采集量化與信號(hào)輸出、數(shù)字信號(hào)處理、圖形算法設(shè)計(jì)、與上位機(jī)通信、上位機(jī)三維圖形數(shù)據(jù)提取等各部分。 創(chuàng)新點(diǎn)l LED的三維陣列模式以及并行式的LED三維顯示驅(qū)動(dòng)方案；l 與上位機(jī)的高速數(shù)據(jù)通信，獲取實(shí)時(shí)顯示數(shù)據(jù)用以三維圖像的顯示，可用以會(huì)展標(biāo)志物的三維影像展示或倒計(jì)時(shí)系統(tǒng)的三維展示；l 采集量化音頻信號(hào)，并做數(shù)字信號(hào)處理獲取三維顯示數(shù)據(jù)，達(dá)到外部輸入信號(hào)與三維圖像的同步、相關(guān)顯示，用以制作音樂噴泉或魔幻音樂等；l Bezier曲線、曲面構(gòu)建三維圖形；l 融入解析幾何，計(jì)算機(jī)圖形學(xué)，模擬電路，數(shù)字電路，通信，數(shù)字信號(hào)處理等多領(lǐng)域?qū)W科知識(shí)。作品擁有兩套顯示方案：；、計(jì)算和處理外部輸入信號(hào)獲取顯示數(shù)據(jù)，以使三維圖像與其同步或相關(guān)。CPLD signal acquisition and processing control system which is designed and developed by the team members and bines the PC graphics software with digital signal processing, and also involves much knowledge in various subjects, such as analytic geometry, puter graphics, analog circuit, digital circuit, munications, digital signal processing, etc. It focuses on the LED 3D display array and aims to develop a set of 3D simulation technology in which upper puter and lower puter are bined. This work tries to serve the Shanghai World Expo and it can be used in propagation, exhibition of the 3D images of some symbols (such as emblems and mascots), 3D countdown system and the visual effects of exhibition site (such as musical fountain and magic music), etc.Keywords: LED 3D Array。CPLD信號(hào)采集處理與控制系統(tǒng)作，結(jié)合上位機(jī)圖形計(jì)算軟件與下位機(jī)數(shù)字信號(hào)處理，并融入解析幾何、計(jì)算機(jī)圖形學(xué)、模擬電路、數(shù)字電路、通信、數(shù)字信號(hào)處理等多領(lǐng)域?qū)W科知識(shí)，針對(duì)LED的三維顯示陣列，完成一套上位機(jī)與下位機(jī)相結(jié)合的三維仿真技術(shù)。基于DSP的三維LED顯示器采用團(tuán)隊(duì)成員設(shè)計(jì)開發(fā)的DSPamp。CPLD；AbstractThe LED based flatpanel display technology is quite mature at present. However, the application of LED based threedimensional display (LED 3D display) is still rare at home and abroad. At present, the only LED 3D display is limited to the display of simple programcontrolled fixed dynamic image. This DSP based LED simulation 3D display te