数字计算机

In addition, the edges, veins, skeleton and fissility of plant leaf are also primary features for plant morphology. So we also studied the method of the automatic extraction of these structural features from leaf images, which is a necessary step to design an automatic plant species system.

另外，叶片的叶缘、叶脉、骨架、裂深等叶片结构特征是植物数值分类学的主要分类性状，也是植物形态学分类的依据，通过数字图像处理技术实现这些性状的自动提取，是计算机辅助植物物种识别的重要内容和必然环节，所以对这些叶片结构特征的自动提取方法也进行了研究。

Studied the digital frequency band communications system computer simulation to realize the method.

研究了数字频带通信系统计算机仿真的实现方法。

In this paper , Performance of the system is analyzed theoretically under the assumption of Gauss distribution of APD output and in the presence of multi-user interference and noise mentioned above.

本文在系统中存在上述噪声及多用户干扰，APD光电检测器噪声作高斯近似下，对系统误码性能进行了理论分析及计算机数字仿真。

The Dawning/2000 Supercomputer is a general purpose parallel computer with the scalable cluster architecture, which supports technical computing, network service and data processing applications.In this paper, the design goals of the system software of Dawning/2000 are introduced.

引 言今天，可扩展的并行计算机系统正广泛地应用于需要更高性能的应用领域，如传统的科学与工程计算应用、决策支持和事务处理等商业计算应用、大型信息服务和网络服务、数字图书馆和视频多媒体系统。

This paper mainly uses the technologies and methods of digital image processingand computer grogram language to research and develop an automatic separation system ofcoaland gangue.The technologies and methods in this system can make a stable base to furtherresearch and practical manufacture.

本文主要利用数字图像处理技术及其方法结合计算机编程语言来研究和实现煤矸石自动分选系统，在此过程中所应用的技术和方法为今后的深入研究和将其应用于实际生产奠定了坚实的基础。

The stability problems are analyzed and discussed. The optimal control problem is formulated to determine the necessary conditions for optimality in networks. Three theorems about the properties of the steady state-costate solution in Hamilton function are confirmed leading to the natrual meaning and the optimal policy which can be implemented in practice. In chapter Ⅴ, the methods for nonstationary simulation of computer networks are discussed.

第四章表述了计算机通信网动态特性研究的主要数字方法；提出了排队与随机存取机制、网络链路传输和节点分流的状态空间模型，并作了稳定性研究；应用最优控制理论得到网络最优控制的必要条件，证明了哈密尔顿函数协状态变量的稳定解性质，据此研究分析了网络最优控制的本质意义及实现途径，并给出计算及建模实例。

With the high speed development of Information and Computer Technology, Digital Signal Process technology has been a very key science gradually.

随着信息技术和计算机技术的飞速发展，数字信号处理技术已经逐渐发展成为一门关键的科学技术。

With the development of computer and high speed large integrated circuit, the applications of DSP become more and more important and it intends to be more perfect and effective.

而随着计算机、高速超大规模集成电路的发展，数字信号处理的应用也越来越重要，并趋于更加完善和有效。

It is a computer control system with the high speed DSP single-chip computer TMS320VC33.The count functions of the signal of accelerometers and the signal of odometer have been designed with CPLD,and the communication functions have been achieved with peripheral equipment.

整个系统是以数字信号处理单片机TMS320VC33为核心的单CPU结构的计算机系统，CPLD的设计主要是实现对加速度计和里程表的输出信号的计数及实现DSP与外部的通信。

The research of the Integrated Navigation System based on the microprocessors is a hotspot because of the highspeed development of the microprocessors technology.

随着计算机技术和数字信号处理技术的迅猛发展，基于微处理器的捷联惯性导航和全球定位系统的组合导航系统的设计成为目前研究的热点。

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。