信号机

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

Equipped with AT89C51,the temperature sensor and the modulus convertor and coordinated by soft and hard wares,the system can fufil the instantaneous gathering of multichannel temperature signal,then,by meaus of asynchronous string communication,send the digital signal to PC which can separately display the instantaneous value and the average value of each channel temperature in bar diagram and weblike form,and print the temperature curve graph through data scale transferring,analyzing,and collating.

该系统运用单片机AT89C51、温度传感器保温器及模数转换器，通过软硬件的配合，实现了多路温度信号的实时采集，用异步串行通信发送数字信号到PC机，PC机经过数据的标度转换、分析、整理，分别用棒状图和网状表格显示各路温度瞬时值和平均值，打印出静态降温调温曲线图。

The main results that have been accomplished in the paper are listed below: 1. Accumulated lots of experimental data of life-parameter signals with the equipment of detecting the wounded. 2. Provided a method of frequency domain signal integration based on FFT to detect non-contact life-parameter signals. 3. Built up an algorithm of lifeform identification which was based on the time and the frequency domain analysis of life-parameter signals. 4. Developed an application software of life identification for the wounded detecting equipment system S2000?

取得的主要研究结果有：1、用现有的伤员探测实验平台采集了大量生命参数信号，积累了实验数据，为信号处理及信号特征提取研究打下良好的基础；2、提出了基于FFT频域积累的方法进行非接触生命参数信号分析与检测；3、综合时域、频域中生命参数信号特征分析的实验结果，形成生命体识别算法；4、为52000—l型伤员探测装备样第2页第四军医大学硕士学位论文机研制了伤员探测生命体识别软件系统。

In this paper, the performance of SVM based on Fourier kernel is studied which aims at the regression in signal processing questions, and the influence of parameter q on performance of SVM is analyzed. A conclusion is drew that the integral of Fourier kernel in one period is a constant and the concept of equivalent kernel function width is proposed.

本文针对信号处理中的回归问题，研究了基于傅立叶核函数支持向量机的性能，并分析了参数q对其性能的影响；根据推导得出傅立叶核函数在单个周期内积分为常数的结论，并提出了等效核宽度的概念；最后的仿真结果证实了，在信号处理领域，采用傅立叶核函数的支持向量机比采用径向基核函数的有着更好的性能。

Production, product agent is as follows: non-destructive testing apparatus sclerometer CMM Measuring Microscope other fatigue testing machine tensile testing machine magnifying glass platform scale universal testing machine Bending tester other specialized instrumentation impact test machine temperature test equipment altimeter instruments denominated balance scale strength test machine other analytical instruments instrument calibration signal generator temperature on the ground value of other non-metallic materials testing machine testing machine projector dial indicator vernier caliper corrosion test chamber package testing machine other experimental devices chromatography apparatus conductance velocity measurement instrument spectrometer, photometer Thickness gauge instrument measuring color, color card LCR meter vacuum measuring instruments automotive test equipment non-contact thermometer other optical instruments micrometer scale quantitative stress thermometer Products manufacturing equipment and other electronic measuring instrument products Product Guanglu Weihai measuring series Product volume of new tin, tin workers, Shanghai Han family of products in conjunction Si Series Product Qinghai Shanggong Series Gauge Series Products Products Products on the volume of products into the volume of the volume of HA products Gui volume, the volume of products Hang workers Southwest product line Dayang, ASIA, JAPAN Sampoong measuring, Japan peacocks, Series Shanghai workers, Cypriot ruler, thread model, the radius of the regulation, steel ruler Gradienter, magnetic instrument series drilling chuck, and then shot, tap chuck plate Sizing Block shelves, Qu Zheng, cast iron box, than the measured Units, V-iron, a strong magnet, remove the devices, compasses, angle regulation, vigorously forceps, needle regulated metal scissors, cut piece, flat panel | ring, plug gauge, spiral Tap, tap extrusion, left teeth longer straight shank drill tap, longer straight shank drill American Standard drilling, boring white±×êHA, Green Diamond, 1 / 2 shank drills, taper shank extended drilling, are welcome to inquire.

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Cooperating the advantages of SVM solve classification problems about small sample set, non-linear and multi-dimension model identification, I use SVM to train the sample set of different frequency signal and look for a super plane to divide the data into two parts. This method gets rid of complex computation which is a flaw of traditional decoding method.This paper introduces the theory and algorithm of SVM at first. It proposes to use the SVM to decode FSK signal based on the classifiable character of SVM.

结合支持向量机在解决小样本、非线性及高维模式识别问题中表现出的许多特有优势，运用支持向量机对不同频率信号的数据样本集进行训练，通过寻找最优超平面来对不同频率信号的数据进行快速分类，克服传统频移键控解码算法中需要进行大量运算的缺点，从而实现频移键控的解码。

In the third part of this paper, it introduces detailedly the hardware and software information to you. It focuses on the hardware which relative to DSP in hardware introduction. In software introduction, relative time decision method and C language program approach of decision-function are the emphases. In the last of this part, it gives a method that uses decoded data to configurate right calling numbers based on the deeply research on Calling Information Data protocol.

本文第三部分详细介绍应用支持向量机进行解码的实际系统硬件和软件设计，其中硬件部分重点介绍了与DSP处理信号相关的硬件原理，软件部分则重点介绍正弦信号采样点相对时间确定的方法和支持向量机分类决策函数的C语言实现方法；在深入分析CID信号协议的基础上，按照解码系统的要求，给出了如何将解码得到的二进制数据串恢复成调制之前信息的方法。

The application of the detector is widely; it can check many signals produced by our airplane's troop, and simulate the three signal frequencies supplied by beaconing station; Both intelligentize degree and frequency stability exceed those of traditional beacon receiver detector. The output signal and modulate degree can be adjusted according to the conditions.

该检测仪的通用性很好，能对我军航空兵部队的多种机型上的机载信标机进行检测，而且能够对信标台的三种信号频率都进行模拟；智能化程度及频率稳定度都超过了传统的信标机检测仪，并且输出信号的功率和调幅度均能按照使用条件进行调整。

Beside, the DVD-ROM drive use the FE signal to compensate the axial wobble (CD:±500μm, DVD:±300μm) which are caused by the rotating disk. The gain signal of the plant will be corrected during the automatic adjustment procedure when the DVD-ROM drive is starting.

此外，光碟机利用聚焦误差信号来补偿盘片旋转所造成的轴向偏摆(CD：±500um、DVD：±300um)，其信号增益值在光碟机启动时的自动调整程序里进行校正。

Based on the work principle of the speed reducer ,the paper studies the produced mechanism of the vibration signal,the fault forms and the different type of vibration caused by the faults.

文章以减速机工作原理为基础，研究了减速机振动信号产生的机理、减速机故障的形式，以及由于故障的不同引起的不同形式的振动，从减速机外部振动信号中获取故障特征信息，有效地实现了减速机的故障诊断。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。