模数

The paper first discusses the programming principles of how to exploit the parallelism underlying in sequential programs with the Parallel Programming Interactive Environment, explains the designing methods of the major functions and tools integrated in the PROFPAT (the PROgramming environment for the Fortran PArallel Transformer), and demonstrates its initial application process by the practice of interactive dependence analysis, loop parallelization, array privatization and unimodular transformation.

首先，本文从理论上深入探讨了如何借助并行程序设计交互环境帮助程序员分析和利用潜藏于串行程序中的并行性的原理，详细介绍了并行程序设计环境PROFPAT中集成的主要功能和主要工具的设计实现方法，并结合交互相关性分析、交互循环并行化变换、交互数组私有化变换、交互幺模变换等程序并行化分析、变换的初步应用实践，说明了这些工具和功能的应用方法。

The method is capable of very high frequency resolution if the technique of fractional addressing is used for.

这种方法的特点是连续读取预先存入波形存储器里的数据，然后通过数模转换器重新合成一个波形。

This subject introduces a kind of nc dc voltage stabilizer, the power supply, by simulation showed circuit, control circuit and digital-to-analog circuit, amplifying circuit four parts, mainly is a set of singlechip intelligent dc power supply.

本课题将介绍一种数控直流稳压电源，该电源由模拟电源、显示电路、控制电路、数模转换电路、放大电路四部分组成，主要是一套以单片机为核心的智能化直流电源。

The difference between static coefficient analysis and spectrum analysis based on wave form expansion with different number of modes was discussed on the basis of the seismic analysis.

在此基础上对不同模态数扩展下的谱分析结果和静力系数法的计算结果进行比较研究。

In this paper,An idea on the design of arbitrary waveform synthesizer which based on high speed digital and analog circuits is introduced.

文中介绍了一种基于高速数模电路的任意波形发生器设计思路及其工程实现模型，并就其相位噪声、杂散电平等性能加以分析。

Direct digital waveform synthesizer; linear frequency modulated signal; digital-to-analog conlerter; pulse compression

直接数字波形合成；线性调频信号；数模转换器；脉冲压缩

This paper systematically researched this sort of nonuniformly sampled signals'digital spectrum structure, signal-to-noise ratio , the response of D/A converter with nonuniformly sampled signals, the algorithm for estimating timing offsets, the relationship between the discrete time expression of the total energy and the continuous time expression, the estimation of the average power, the algorithm of recovery and application in designing and analyzing the digital waveform synthesizer.

本文全面系统地研究了这类周期性非均匀采样信号的数字谱结构，信噪比表达式，数模转换器对非均匀采样信号输入的响应，误差校正算法，时域与频域的能量对应关系，对功率测量的影响，内插恢复算法，以及在设计和分析数字波形合成器中的应用。

Direct digital waveform synthesizer is a digital method that the radar signal is generally generated.The error resource of DDWS is presented.The principle that signal is reconstructed in digital-to-analog converters is analyzed in the DDWS structure.

介绍了直接数字波形合成(direct digital waveform synthesizer，DDWS)的误差来源，分析了DDWS结构中其数模转换器信号重构机理，比较研究了DAC信号重构误差对输出信号脉冲压缩结果的影响。

Obtains after the number/mold transformation as well as the filter needs the signal the profile, his table look-up synthetic waveform method may have the random profile request satisfiedly.

经数/模转换以及滤波后得到所需信号的波形，他的查表合成波形的方法可以满足产生任意波形的要求。

The well-grown hMSCs of the first to second generation were chosen to perform the record and analysis with whole cell patch clamp technology, Type PC-IIB patch clamp amplifier （developed by Huazhong University of Technology was adopted in this experiment）.

实验采用PC-IIB型膜片钳放大器，由计算机发出指令经数字量数据／模拟量数据转换经放大器输出到细胞，细胞信号由放大器放大再经模／数转换后记录到计算机，保存在数字硬盘上供分析调读，记录与分析软件为IBBClamp，采样间隔100μs。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。