Fpga logic devices not only the full realization of the separation of the functions of portfolio , and to achieve its unique functions , such as data stored in a data sampling address and read out the address of the digital processing capabilities and powerful advantage Fpga不但完全实现分离逻辑器件的功能组合,而且能够实现其独特的功能,比如在采样数据时产生数据存储地址和读出地址方面以及强大的数字处理能力等优点
Sencondly , passive location system nonuniformly - sampled data synchronization algorithm is designed based on the particularity of the passive location nonuniformly - sampled data , which including adaptive system period algorithm with sliding window and fast interpolation algorithm Cep其次,针对无源定位系统非均匀采样数据的特殊问题提出了无源定位系统非均匀数据同步化算法,即滑动窗自适应系统周期计算和快速内插算法。
This thesis focuses on pre - computation and sampling based real - time realistic image rendering . the key idea is to use the information in pre - computation results or pictures captured , for presenting effects of highly realistic shading and supporting fast rendering 本文主要研究基于预计算及采样的实时高真实感图像绘制技术，该技术的思想是利用图像或预计算结果的采样数据，展现高真实感的图像效果，支持快速的绘制计算。
Aiming at local distortion of intensity distribution in linearly coded profilometry , the processing methods to rehabilitate or wipe off the aberrance sampled data are proposed , which can improve the performance of measuring system effectively as well as its reliability and practicability 针对常规线性编码轮廓术中光强分布的局部失真，提出修复或去除变异采样数据的方法，该方法可有效地改善系统的测量性能，提高其可靠性和实用性
It deduces the interpolation formula of simultaneous sampling datum calculated by the asimultaneous sampling datum and uses fast fourier transform ( fft ) technology to calculate harmonic parameters . in the end , it gives harmonic errors " datum and curves by means of math model and computer simulation 在此基础上，导出了用非同步采样数据计算同步采样数据的插值公式，并根据复序列快速傅立叶变换（ fft ）原理对插值后的采样数据进行分析和计算，从而得到电网谐波参数。
In the digital ultrasonic flaw detectors , backward - wave signal is sampled and changed through the highspeed a / d converter , and we ' ll get a large number of datas . because datas are not all be used to draw testing curve , they must be compacted . lt is necessary to compress so much datas , so data - compaction instrument must be designed and used . here introduces the principle of data - compaction instrument , and designs a exclusive instrument using isp which may change compression point and automatically provide 1024 consecutive addresses of outside data storage unit 在数字化超声波探伤中，回波信号经高速a d采样变换后，会得到大量的采集数据。但在探伤曲线的描绘中并不是用到所有数据，因此要对这些数据进行压缩处理，这就需要用到数据压缩器，这里介绍了一种应用在线可编程技术及器件实现对大量采样数据进行快速压缩的方法，并设计了一种新型的专用isp数据压缩器，该压缩器具有压缩点数可调，可自动提供1024个连续的外部数据存储单元的地址等特点。
Single chip needs too much time to calculate and we ca n ' t detect power quality real time for example , and the sampling rate must synchronize the signal frequency . when sample multi - channel signal in turn , it must have time delay between two samplings , so the phase angle difference between each channel signal is ca n ' t be avoid and so on . those problems must be solved 本课题分析了目前电能质量的各种检测方法，认为快速傅氏算法（ fft ）是首选方法，但是基于定时采样的fft计算会产生频谱泄漏，为了减少这个泄漏需要进行加窗处理，这需要增加采样数据，导致显著增大计算量。
Through regress analyse to sampling data above mentioned , a mathematic model of drawroll temperature detecting and controlling is built in cotrolling part . furthermore through microprocessor , we analyze the sampling data and determine the manipulative parameters under the controlling of pi . in the communication part , by means of debugging the serial commucation between the single - chip microcomputer and pc , so that we can make the system completing many function in pc , such as setting each controlling parameter and inspecting real - time temperature of drawroll 采样部分完成对数据的实时采集，由带a d转换的采集系统采集现场数据；在依据采样数据建立数学模型的基础上，由核心微处理器分析现场采集到的数据，在pi算法的控制下确定控制参数；采用异步串行通讯的方式实现上下位机的通讯，使系统可以在上位机实时设定各个控制参数，并进行温度、速度等运行参数的实时监测。
In such situation , controlling of the transf - orming process and synchronizing of sampled data only could be achie - ved via hardware , and data must be stored ( by using high - speed stora - ge chip ) and digital signal must be processed ( by using high - speed d - sp ) in real time simultaneously 在这种情况下，通常只能用硬件实现转换过程的控制和采样数据的同步，仔细设计时序电路，同时必须采用高速存储芯片对数据进行存储和高速的数字信号处理器（ dsp ）完成数字信号的实时处理。
The main work of the paper is for these cases . there are analog integral and digital integral . it was taken into account that the analog integral calls for high performance components , and hard to compensate , so the first part of my work is integral arithmetic analysis and simulate 本文的工作主要是针对以上情况展开的，积分可以采用模拟积分和数字积分两种，考虑到模拟积分对元件要求很高，而且不容易进行补偿，因此第一部分工作是数字积分算法的比较和仿真：选取合适的采样数据，从两个角度进行比较。
