水下目标高分辨方位估计特征分解法的C30硬件实验研究

高分辨方位估计特征分解法是一类性能良好的方法，本文从水下阵列信号处理的实际应用出发，对这类方法进行了C30硬件实验研究，所得结果为高分辨技术的实际应用提供了重要依据文中构造了高分辨方位估计的C30硬件实验系统；并实现了高分辨方位估计的Pisarenko法、MUSIC法、Johnson法和最小摸（Mininorm）法；对高分辨实验系统进行了仿真实验和消声水池实验，并测试了各特征分解法的运行时间．结果表明，高分辨C30实验系统表现了良好的方位估计统计性能和实时性能     

基于Web服务的应用系统架构方法研究

Web服务是自描述、自包含的模块应用，其本身具有与组件模型无关、平台无关、编程语言无关等优良特性。本文给出了基于Web服务的一般的应用系统的构架方法以及实现的流程。     

电磁屏蔽技术在通信设备结构设计中的应用

分析了电磁干扰形成的原因及其危害，介绍了工程上运用电磁屏蔽技术解决电磁干扰问题的几种常用方法。提出在工程实际应用中，采用定性分析和经验公式相结合的方式进行估算。     

Influence of Data Acquisition Environment on Accuracy of Acoustic Voice Quality Measurements

Accuracy of acoustic voice analysis is influenced by the quality of recording. Lately, articles have suggested that soundcards perform equivalently to specialized professional-grade data acquisition (DA) systems. The purpose of this study was to investigate the influence of DA environment (DA system and microphone) on acoustic voice quality measurement (VQM) while balancing for gender, age, intersubject and intrasubject variability, and analysis software. More specifically, the relative performance of different hardware environments and the relationship between their technical characteristics and VQM performance was investigated. The discretization error and the effective dynamic range of the different DA environments were measured. We used 3 software systems to record and measure separately 2000 acoustic samples of sustained phonation for fundamental frequency, jitter, and shimmer. Analyses of variance (ANOVA) were performed with these parameters as the dependent variables. The results of the study suggested that professional-grade DA hardware is strongly recommended to provide accurate and valid voice assessment. The fundamental frequency measurement differences across DA environments were highly correlated to the discretization error (r=1.00), whereas jitter and shimmer were highly correlated to the effective dynamic range of the DA environments (r=-0.68 and r=-0.86, respectively).     

浅谈竹材建筑

竹材具有资源丰富、成长周期短、能耗低、材料性能良好等特点,如果能够将其应用于中小型建筑(如农村住宅、生态景区别墅酒店、救灾安置房等),不仅价廉、减少消耗,且符合生态环保及可持续发展要求,将具有广阔的应用发展前景。     

基于msp430 的智能仪表的设计

从工业现场智能仪表的应用特点出发，结合实践经验，详细讨论了基于msp430的智能仪表的软硬件设计，实验应实际运行的情况表明设计是合理的，在功能、可靠性、耗电、精度等方面都达到了预期的效果．     

几种模拟乘法器在ECT硬件系统中的应用比较

本文对模拟乘法器在ECT系统(电容层析成像系统)的C／V转换电路中的应用进行分析,并就其在该 系统中的性能参数进行详细比较,结果表明,采用AD534是几种乘法器应用于ECT硬件系统的最好芯片．     

关于IPv6安全体系结构——IPsec的研究

对IPv6引入的IP层安全机制-IPsec的体系结构、认证机制、加密机制以及密钥管理机制捏造研究。     

人工脑的三维模型及应用

将二维人工脑模型推广到三维，并给出了一个实际应用算例，还将二、三维模型的计算结果进行了对比，发现三维模型的计算效果明显优于二维模型。     

个人通信网络结构的探讨

本文简述个人通信的概念与发展状况；讨论个人通信的特点，并根据这些特点，从接入、传输和控制方面详细讨论个人通信网络的结构。