硬件

The article introduces how to combine software and hardware together to identify telephone signals, thus providing practical circuit and application for identifying telephone signals in autodial system.

如何正确识别电话信号音？本文在分析电话信号音的基础上，用硬件、软件及硬件与软件相结合的方法，识别程控电话的各种信号音。

And discuss how to design the hardware in the base of MATLAB and optimize the module designing.

又仿真基础上采用FPGA进行硬件设计，结合硬件设计的特点，优化模块的设计。

This text describes the basie train of thought and the basie method of the reform of the computer hardware teaching of computer science and technology speciality in Chinese normai universities from the angle of the social develop-ment in the 21 st century.

1引言 计算机系统是由硬件系统和软件系统构成的，硬件系统和软件系统既相对独立又相互作用，相辅相成，构成一个完整的系统，并且缺一不可。

Application to the design of powertrain control system shows the powerful strength of HIL simulation system. Bench test results show the accuracy of HIL simulation model and the satisfactory performance of the constant voltage control strategy.

硬件在环仿真系统在动力控制系统开发中得到了广泛的应用，并对恒压控制算法进行了台架试验，验证了硬件在环仿真系统的有效性。

The paper introduces the conception of digital home and its development and significance at first. Then it explains the foundation of digital home system platform based on hardware platform and system operation system. Following it talks about the frame hardware system design and the daughter module board of the embedded digital home system platform based on Blackfin. After that, it mainly explains the uClinux kernel's transplantation and realization on the digital home system platform. At last it introduces the embedded GUI—microwindow's transplantation and realization.

首先简单介绍了数字家庭概况以及课题研究的意义；其次从硬件平台和系统软件两个方面阐述了数字家庭的系统平台基础；接着描述了基于Blackfin的嵌入式数字家庭系统的硬件总体设计和子模块设计；然后重点论述了uClinux操作系统在数字家庭平台上的移植与实现；最后详细介绍了嵌入式图形用户界面GUI——Microwindows的移植和实现。

This paper focuses on the measurement of temperature of hardware block design, as well as parts of the circuit were introduced on January 1, the final realization of the system hardware circuit.

本文重点对温度测量的硬件组成进行了分块设计，并对各部分的电路一一进行了介绍，最终实现了该系统的硬件电路。

Canopus develops and engineers all of its own systems—hardware and software—in house. This is what makes overall system optimization possible, including hardware architecture, codec, and disk I/O.

Canopus 研发工程师自主开发硬件和软件，使制造出包括硬件、编码器和磁盘存储在内的全面优化的系统成为可能。

Canopus allocates all processes that can be completed between I/O hardware and external devices to hardware (including scaling of image data, digital filter processing, and adjustment of quantifying bit numbers).

Canopus 分配从硬件 I/O 接口和外部设备到硬件所有的处理（包括变换像素比，数字量化处理，调整量化标准）。

This paper mainly discusses the designing scheme and the realization method of the information processing board—the data collecting and processing centrum in the system,including hardware and software.

本文着重分析了系统中数据采集与处理的中枢—信息处理板的设计方案和实现方法，包括硬件和软件两方面。硬件主要包括陀螺数据、加速度计数据、温度数据的采集电路，外部通讯接口电路和用户程序引导装载电路的实现。

Based on the research results of Chaos theory, in this dissertation, it has made detailed analysis of the chaotic signal generator. Firstly, the characteristic and various detection methods of chaotic signal are recommended. Secondly, with the aid of software, such as MATLAB, PSPICE, EWB, etc, discussion of the process of generating chaotic signal proceeds. Through simulation, the output result of several kinds of chaotic circuit are analyzed and compared. Thirdly, aiming at Chuas chaotic circuit, through debugging, the impacts by components and parts in the circuit, such as operation amplifier, capacity, inductor, etc, has been further investigated. And then provides a new scheme to implement Lorenz chaotic system, the circuit design and analysis are presented in detail and it can be realized by the hardware of programmable arrays FPGA, the experimental results indicate that this scheme has the advantages of easy operation, flexible design and high efficiency. An application example in secure communications is also provided. Finally, through picking up the characteristic parameter-Lyapunov exponent of the Chaos we can analyze the performance of different chaotic signal generators.

本文在混沌理论研究成果的基础上，对混沌信号的产生做了详细的分析，涵盖以下内容：首先介绍了混沌的定义，混沌信号的基本特性和各种判别方法，特别是对简单的一维Logistic映射的硬件实现问题做了初步探索；其次对混沌信号的产生方法进行讨论，借助于MATLAB、PSPICE、EWB等仿真软件，对几种混沌电路输出的混沌信号进行了分析比较，并在此基础上针对典型三阶连续自治系统Chua's电路作进一步实验研究，通过混沌电路调试，深入研究电路中各元器件，特别是运算放大器、电容、电感等对混沌信号时域以及频谱的影响；再次研究连续混沌系统的数字化硬件产生，设计了Lorenz混沌电路在现场可编程门阵列FPGA上实现的新方案，在保密通信中的应用实验结果表明该方案具有操作简单、设计灵活、效率高等优点；最后针对不同混沌系统，采取不同算法，提取混沌特性参数Lyapunov指数，进而对不同的混沌信号发生器的性能进行了分析。

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。