Conversion Accuracy Between DEMs of Different Data Structure in Loess Hill and Gully Area 黄土丘陵沟壑区不同数据结构DEM转换精度研究
In seismic data processing and interpretation, the velocity model for time-depth conversion largely affects the imaging accuracy for these structures. 在地震资料的处理和解释中,用于时深转换的速度模型对高陡构造的成像精度影响很大。
Study on Aerial Triangulation Conversion and Accuracy Control in Pixel Factory 像素工厂空三转换及其精度控制研究
The gravity field model and DEM improving the GPS elevation conversion accuracy 重力场模型和DEM提高GPS高程转换精度
A Conversion Method of Accuracy Specifications of the Guidance Radar Series 制导雷达系列精度指标的换算方法
Design of AC-DC Conversion Circuit with High Accuracy 高精度交直流转换测试电路设计
Double-integrating A/ D conversion with high accuracy is utilized in the EMF to eliminate noise caused by sharp pulse and AC interference. 采用了精度很高的双积分模数转换,对各种尖脉冲及交流工频干扰有很好的消除作用。
The device Adopt the constant-ratio electric circuit and time-amplitude conversion, the accuracy of delay time raised biggest. 采用恒比定时电路以及时幅转换显著提高了对延迟时间的测量精度。
V-F converter is the main part of this instr. and is difficult in technical preparation. In this paper, emphasis is placed on the analysis of V-F conversion constitution, technology and conversion accuracy. V-F变换是该仪器的主要单元,也是研制技术较困难的单元,本文着重分析它的结构、工艺和变换精度。
The Properties and Protecting Measures for Conversion Accuracy of ADC 1210 ADC1210的使用与转换精度的保证措施
The test indicates that with proper scaling method for A/ D conversion, high conversion accuracy and speed could be achieved. 试验表明采取适当的A/D定标方式,可达到很高的转换精度和转换速度。
The Measuring and Value Conversion of Accuracy Electroplate Current 精密电镀电流的检测与数值换算
Techniques and circuitry to test major parameters, such as conversion accuracy and tri state output characteristics, are described in particular. 详细介绍了诸如转换精度、三态输出特性等主要参数的测试方法和测试线路。
The sources and forms of conversion error of high accuracy shaft-angle measuring system are analyzed. And the methods of avoiding or restraining error are introduced at one time. 详细分析了角位置测量系统转换误差的来源及形式,并针对性地给出了消除或抑制误差的方法。
Coordinating transformation between image of GIS data and geodetic coordinates is problem frequently met in processing of remote sensing images, which involves a contradiction between processing speed and conversion accuracy. 针对在遥感图像处理中,在进行图像像素坐标与地理坐标相互转换时,转换速度和转换精度不能同时满足的矛盾,引入索引矩阵的概念,提出并实现了一种新的快速转换算法。
Experiments were made with 729 samples and the experimental results showed that the conversion accuracy of this method is higher than those of some other methods, which build direct relationship between output and input. 采用729组训练数据的实验结果表明,该色度密度方法达到的变换精度高于一些直接建立输出输入关系的方法。
Some problemes with the distributed hydrological model studies such as DEM resolution, spatial and temporal scale conversion, accuracy of remote sensing retrieval and remote sensing data uncertainty are pointed out, and the prospect for the distributed hydrological model studies is also made. 指出了应用中存在的DEM空间最佳分辨率选择、空间尺度和时间尺度、遥感反演精度和资料不确定性等问题,并对今后分布式水文模型研究做了展望。
Due to higher conversion accuracy and a series of other advantages, ∑-Δ over sampling A/ D conversion technology has been paid great attention in recent years. The hardware description language VHDL-AMS for analog and mixed-signal system can provide an excellent design methodology for it. 由于具有转换精度高和其他一系列优点,∑-Δ过采样A/D转换技术近年来颇受重视,而模拟和混合信号系统的硬件描述语言VHDL-AMS为其提供了一种良好的设计方法。
This paper sets up the equivalent model of ADC and frontal channel, and determines the relation of the ADC sampling time and the value of the external driving source resistance to provide a desired ADC conversion accuracy, and an appropriate sampling frequency is inferred. 通过建立ADC及前向通道的等效模型及推导,在保证ADC的转换精度下,推出ADC的采样时间与信号放大电路输出阻抗的匹配关系,得到ADC最合适的采样频率。
The paper introduces some key technologies and points for attention in detail during hardware debugging and software development process, which includes the AD conversion accuracy, the external SRAM address mapping, CF card storage format as well as real-time clock reading and writing time sequence. 文中详细介绍了硬件调试和软件开发过程中所涉及的关键技术和注意事项,包括AD的转换精度、外部SRAM的地址映射、CF卡的存储格式以及实时时钟的读写时序等。
However, with the improvement of conversion accuracy, the area of the chip also increase greatly. High-performance DAC also brought a high cost and large power consumption. 然而,转换精度的提高极大地增加了芯片的面积,DAC的高性能同时也带来了高成本与大功耗。
This conclusion indicated, that conversion model had better accuracy with the method of nonlinear regression model. 3) Established coversion model from Lab color space to CMY ( K) color space by multiple multivariate nonlinear regression. 3)使用多重多元非线性回归方法建立了从Lab色彩空间向CMY(K)色彩空间的转换模型。
This input method has high Chinese phonetic symbol-character conversion accuracy and high intelligence, providing an effective Chinese input method for smart mobile device users. 该输入法具有较高的音字转换准确率和智能性,为智能移动设备用户提供了一种高效的中文输入方式。
Finally, this paper does some tests for the control system, including A/ D conversion accuracy test, PWM output waveform test and control results test of welding process. 本文最后对所设计的全数字控制系统进行了测试,包括A/D转换精度测试、保护电路测试、PWM输出波形测试以及焊接过程波形控制效果测试。
As a kind of optical ADC, E-A optical ADC has significant characteristics, such as high conversion accuracy and simply analog circuits. ∑-△型光ADC作为一种光学ADC,具有转换精度高和模拟电路简单等显著优点。
A/ D Conversion accuracy of the data acquisition instrument and accuracy of sensor conform to the requirements of GB. A two-stage control system of temperature is designed. The primary temperature is controlled by a large-capacity air-source heat pump water heater. 数据采集仪的转换精度和各传感器的测量精度均达到国标要求。设计了两级温度控制系统,利用大容量的空气能水箱来稳定初级温度,初级温度控制精度为±1℃。
Pipelined ADC has a high conversion accuracy, and the characteristics of high-speed conversion, making itself suitable for high-speed and high-resolution applications. The research of pipelined ADC has become an important research direction in mixed-signal integrated circuits. 流水线模数转换器具有较高的转换精度,同时流水线结构本身具有高速转换的特点,使得流水线模数转换器在高速高精度的应用中体现出极大的优势,已成为混合信号集成电路的一个重要研究方向。
In this design pattern, the language conversion without compromising the accuracy of the implementation of the premise of the roughness of the voice recording, storage capacity, while reducing sound and detailed structure of word library. 通过这种设计模式,在不降低语文转换精确度的前提下对语音实行粗糙性录入,降低音库容量的同时,详实化词库结构。