The key questions include real - time operating system , analog - to - digital conversion in real - time system , multiprocessing in real - time system and communication between multiple tasks 主要内容包括实时操作系统、实时系统下的模数转换、实时系统下的多任务以及多任务间的通信的叙述。
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 建立了频差法光脉冲取样、异步光取样及基于时分光取样的光子模数转换实验装置。
Considered a gross error , usually transient , occurring in the reading of digits or numbers and imprecise synchronism which causes changes in different digit positions , such as in analog - to - digital conversion 一种严重误差,一般瞬时出现在读数过程中和由于不完全同步引起不同数字位置的变化之际,如在模数转换过程中。
Considered a gross error , usually transient , occurring in the reading of digits or numbers and imprecise synchronism which causes changes in different digit positions , such as in analog - to - digital conversion 一种严重误差,一般瞬时出现在读数过程中和由于不完全同步引起不同数字位置的变化之际,如在模数转换过程中。
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 在硬件电路方面,本课题采用专用接口芯片pci9054实现测量板与计算机pci总线的接口,采用cpld芯片isp2128实现测量仪的数字控制部分功能。