| 1. | Digital - analog hybrid computer
数字模拟混合计算机 |
| 2. | Digital - analog simulator
数字模拟仿真器 |
| 3. | Digital - analog conversion
楼模转换 |
| 4. | Radar system simulation is combined with digital - analog techniques and radar technology
雷达系统模拟是数字模拟技术与雷达技术结合地产物。 |
| 5. | Digitalstromkreis haben eine grenze . w ? hrend man die industrieautomation erreicht , sind viele signale analoge signale . man mu ? die digital - analog umwanden , um digitalstromkreis dieses （ analoges signal ） zu verarbeiten
数字电路有局限性。因为在实现工业自动化过程中，很多信号都是模拟信号，为了用数字电路处理这些模拟信号，必须模数转换。 |
| 6. | Digitalstromkreis haben eine grenze . w & auml ; hrend man die industrieautomation erreicht , sind viele signale analoge signale . man mu & szlig ; die digital - analog umwanden , um digitalstromkreis dieses （ analoges signal ） zu verarbeiten
数字电路有局限性。因为在实现工业自动化过程中，很多信号都是模拟信号，为了用数字电路处理这些模拟信号，必须模数转换。 |
| 7. | Current turntable control system usually adopts digital - analog control method . with the development of computer science and photoelectric encoder , numeralization of control system has become the trend for designing turntable control system
现有的转台控制系统一般采用数? ?模混合控制方式,随着计算机技术与光电编码器的飞速发展,控制系统的数字化已成为转台控制系统设计实现的发展趋势。 |
| 8. | A general introduction on digital - analog converter study of domestic and aboard is presented . dac principle and structures , and different converters such as current converting and voltage converting are analized . a 8 - bit high speed dac is designed . based on the study of binary weighted dac and thermometer - coded dac , a thermometer - coded current - steering dac is adopted
通过阅读大量文献,较为全面地概括了数模转换器( dac )的国内外动态,介绍了dac的基本原理和结构,分析了dac主要误差来源和模型,对几种典型的dac结构进行了详细的分析,并设计出一个8位高速dac 。 |
| 9. | The research includes : the preprocssing of sensor signal , the normalization and compression , signal transferences in the first and second phases , which ensured an in - depth study of circuit designing for the lowpass wave filter , the digital - analog converter , the voltage controlled oscillator under the comparatively ideal linearity
我所做的具体工作包括：传感器信号的前置处理、归一化变换及压缩、信号的一次变换和信号的二次变换。较为深入的研究了低通滤波器的设计和数?模转换器、压控振荡器在较好线性下的电路设计。 |
| 10. | Tms320c5402dsp was used in the design to replace six scm those was used in the automatic biochemical analyzer now and to control system , cpld epm7128 offer logic circuit to the system . a 16 - bits high - speed a / d conversion device a / d976a replaced a / d574 to complete digital - analog conversion
本系统设计中采用一片高性能的dsp (数字信号处理器) tms320c5402代替了目前生产的全自动生化分析仪的六个单片机完成系统控制，用可编程逻辑器件epm7128提供所需的逻辑信号，采用16位高速a d转换器ad976a取代以往的ad574完成模数转换。 |
