A method of fault diagnosis for mixed analog digital electronic circuits 一種大規(guī)模數(shù)?;旌想娐饭收显\斷方法
Analog digital output option 模擬數(shù)字輸出aio選件
Analog digital control system 模擬數(shù)字控制系統(tǒng)
Transducers , analog digital 模擬數(shù)字轉(zhuǎn)換器
Transducers , analog digital 模擬數(shù)字轉(zhuǎn)換器
Analog digital converter 模擬數(shù)字轉(zhuǎn)化器
Wide dynamic range technology is the feasible scheme to resolve the dynamic gap between the dynamic range of radio front end and the dynamic range of high speed analog digital converter ( adc ) 大動(dòng)態(tài)接收技術(shù)是解決寬帶數(shù)字接收機(jī)中射頻前端與現(xiàn)有高速adc動(dòng)態(tài)范圍之間匹配的瓶頸問題的可行方案。
Our product line includes brakes , clutches , load cells , tension indicators , analog digital tension controllers , ultrasonic tension controllers , safety chucks and web guiding equipment 我們的產(chǎn)品主要包括張力控制用氣動(dòng)制動(dòng)器離合器,張力檢測(cè)器,張力表及模擬式數(shù)字式張力控制器,超聲波張力控制器,安全卡盤和糾偏控制系統(tǒng)。
It provided not only some control signals that measure circuit need but also counters used for analog digital conversion . the calculation of data is accomplished by means of the application software 在硬件電路方面,本課題采用專用接口芯片pci9054實(shí)現(xiàn)測(cè)量板與計(jì)算機(jī)pci總線的接口,采用cpld芯片isp2128實(shí)現(xiàn)測(cè)量儀的數(shù)字控制部分功能。
Secondly , basing on single channel if sr receiver mathematic model , this thesis has designed if sr receiver subsystem and brought forward its design project and system circuit principle diagram , and explained the system working principle . furthermore , this thesis introduces the working principles and respective applications of wideband high - speed adc ad6640 , ddc ad6620 and high - speed dsp tms320c6713 according with the if sr receiver subsystem high - speed analog digital conversion department , digital down conversion department and high speed digital signal processing department . thirdly , the thesis emphatically demonstrates the software realization department of the if sr receiver subsystem , which including ad6620 ' s inner parameter software setup , tms320c6713 data transmission and processing and the quadrant demodulation algorithm program realization 其次,基于單通道中頻軟件無線電接收機(jī)數(shù)學(xué)模型,本文設(shè)計(jì)了中頻( if , intermediatefrequency )軟件無線電接收機(jī)子系統(tǒng),給出了中頻軟件無線電接收機(jī)子系統(tǒng)的設(shè)計(jì)方案和系統(tǒng)電路原理圖,說明了系統(tǒng)工作原理,并分別對(duì)應(yīng)系統(tǒng)中的高速模數(shù)轉(zhuǎn)換部分、數(shù)字下變頻部分、基帶數(shù)字碩士學(xué)位論文軟件無線電理論研究及中頻軟件無線電接收機(jī)子系統(tǒng)設(shè)計(jì)信號(hào)處理部分,介紹了高速adcad664o ,數(shù)字下變頻器( ddc , digitaldownconverter ) ad6620 ,高速數(shù)字信號(hào)處理器( dsp , digitalsignalproeessor ) tms320c6713的工作原理,以及它們?cè)谥蓄l軟件無線電接收機(jī)子系統(tǒng)中的應(yīng)用。