Analog - to - digital converter or analog to digital conversion 模/數轉換器或模/數轉換。
The optical sampling with frequency - shift , asynchronous optical sampling , and photonic analog to digital conversion based on time - interleave were investigated , included the theoretical analysis and experimental demonstration 建立了頻差法光脈沖取樣、異步光取樣及基于時分光取樣的光子模數轉換實驗裝置。
Then the author has also accomplished the high speed data acquisition of ignition voltage and ignition current by adopting the high speed analog to digital conversion device and the first in and first out memory device ( fifo ) 采用高速a / d轉換器和先進先出存儲器( fifo ) ,有效地實現了高速數據采集,實現了對點火電壓、點火電流的采集。
In this thesis , firstly , the main protocols and their functions , the application profiles of bluetooth technology are introduced . the hci protocol is analysized emphasesly ; secondly , the 4 - channel 10v analog to digital conversion ( a / d ) bluetooth adapter , 4 - channel 10v digital to analog conversion ( d / a ) bluetooth adapter , rs232 serial port bluetooth adapter are developed . the hardware and software of them are realized and test ; thirdly , the test tool software for bluetooth adapter is designed . the displaying and saving of data with vc + + 6 . 0 multithread in pc is completed , then the wireless serial port communication between pc and micro - controller unit ( mcu ) is implemented , the data results of those adapters are acceeded ; finally , the bit - error - rate testing software of bluetooth communication system is designed , and the bit - error - rate test results of bluetooth adapter in labortary are acquired and illustrated also 其次提出了硬件設計方案:四通道10v模擬/數字( a / d )藍牙適配器、四通道10v數字/模擬( d / a )藍牙適配器, rs232串口通信藍牙適配器。在此基礎上完成了硬件電路和軟件程序的設計和調試。再次,設計了藍牙適配器測試工具軟件,在pc機上用vc6 . 0 + +多線程編程完成對傳輸數據的保存與顯示,實現了pc機與單片機的串口無線通信,并給出了藍牙適配器測試結果。
Then this paper deals with the design and realization of the smart - antenna receiver system architecture . and the receiver is divided into four modules , including rf front - end module | , if demodulation module , analog to digital conversion module and frequency synthesis module 隨后在此基礎上,對應用于w - cdma系統智能天線接收機進行了系統設計分析,并給出了實現方案,主要包括射頻前端電路模塊、中頻解調電路模塊,參考頻率合成電路模塊和數模、模數轉換電路模塊四部分的設計與實現。