数字化模拟

Based on the numeric monitoring and diagnosis system for 6L16/24 typemarine diesel engine, the instantaneous angular speed and the cylinder pressure areapplied to the monitoring and diagnosing of the marine diesel engine through theartificial faults experiments in laboratory. The experiments results show that theintegrated motheds both the instantaneous angular speed and the cylinder pressurecan effectively diagnose the underpower fault of single cylinder, and detects whichcylinder occurs.

5利用船舶柴油机数字化监测诊断系统平台，进行了船舶柴油机瞬时转速和示功图法监测诊断的故障模拟试验研究，研究结果表明：瞬时转速法和示功图法可有效诊断柴油机单缸功率不足的故障，并可定位到故障缸。

At its root, digitizing video involves both sampling and quantizing the analog video signal.

从根本上来说，视频的数字化同时包括了对模拟视频信号的采样和量化。

The general process of reverse engineering for the punch block of a welding die for shadow mask was stated,including the digitization process of solid mass by using three-dimensional measuring machine,the 3D modeling and surface reconstruction by using Pro/E.

以荫罩焊接模凸模为例介绍了逆向工程的一般过程，采用三坐标测量机进行了实体的数字化过程，使用Pro/E进行了荫罩的3D建模和曲面重构，完成了荫罩焊接模凸模设计，并用Mastercam进行了荫罩焊接模凸模的加工模拟，最后安排工艺流程完成了荫罩焊接模凸模的实际加工。

High precision of data acquisition of accelerometers signal is achieved with V/F convertors.V/F convertors convert accelerometers analog signal into impulse which is transmitted to FPGA and converted digital signal.

为保证其高精度，采用了基于电压-频率转换的数据采集单元来完成加速度计信号的数字化。V/F转换器将加速度计输出的模拟信号转换为脉冲量，FPGA采集脉冲量并转换得到自标定模型所需数字量。

Having studied the digital down-conversionprocess of IF signal before the base band process which follows A/D conversion in wireless communication,the paper puts forward a new idea of utilizing the FPGA to realize multi-channel digital signal DDC.Through analyzing the features and performances of CIC filters,HB filters and multiphase-filter,we combine them with decimators and decimate the A/D data,thus reducing the digital signal rate and the load of DSP when processing the base band signal.

软件无线电技术是在通用的开放式无线电智能平台上，通过安装不同的软件来完成各种通信功能，其结构的基本特征之一就是使A/D变换尽量靠近射频端，目前的方案是在中频对模拟信号进行数字化，对中频数字信号进行下变频处理，使数字信号量降低到高速DSP能够处理的程度[1]。

The transition from analog to digital RF technology has generated the need for high-performance RF test tools and has fueled the demand for digital as well as PC-based oscilloscopes or digitizers.

从模拟到数字射频技术的转变产生了对高性能射频测试工具的需求，同时也为启动了对基于 PC 的示波器和数字化仪的需求。

The dashboard is all digital but I think an analog tacho must have been better and added to its looks.

仪表板是全数字化，但我认为一个模拟塔肖必须更好并添加到其外观。

Characteristic of visible light spectrum was studied on nickel in ferroalloy with grating spectroscope and prism spectroscope.

使用光栅看谱镜和棱镜看谱镜研究了铁基合金中Ni元素看谱分析用可见光谱，计算机模拟了Fe和Ni元素的可见光谱图，摄制了数字化彩色图谱。

Characteristic of visible light spectrum was studied on nickel in ferroalloy with grating spectro- scope and prism spectroscope .

使用光栅看谱镜和棱镜看谱镜研究了铁基合金中Ni元素看谱分析用可见光谱，计算机模拟了Fe和Ni元素的可见光谱图，摄制了数字化彩色图谱。

Characteristic of visible light spectrum was studied on titanium in ferroalloy by digital analysis system with grating spectroscope and prism spectroscope .

使用看谱镜计算机自动分析系统研究了铁基合金中钛元素看谱分析用可见光谱，模拟了Fe和Ti元素的可见光谱图，制作了数字化彩色图谱。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新