湖泊藻类叶绿素-α和悬浮物浓度的高光谱定量遥感模型研究

本文利用地物光谱仪对太湖水体进行了光谱测量和同步采样分析，对获得的数据尝试用光谱分离法进行分析，从中分离出蓝藻和悬浮物的特征波峰，建立波峰高度与同步水质采样得到的叶绿素-α浓度和悬浮物浓度的对应关系，得出其遥感定量反演算法，并实际应用在OMIS成像光谱仪图像上．     

Bent函数在流密码中的应用

本文利用频谱方法研究了Bent函数在流密码中的应用,指出Bent函数具有最高的非线性度,用它作非线性组合器中的组合函数不但可很好地抗相关攻击,而且可最大程度地抗最佳线性逼近攻击。本文还对Bent函数进行了改造以满足平衡性等要求。     

激光角膜矫正术中所用激光波长的选择

用分光光度计测定了12例兔角膜和1例人角膜的吸收光谱,结果表明波长小于300nm的准分子激光和波长在1.88μm～2.64μm,2.36μm～40μm的激光,均可对角膜进行切割并可望用于激光角膜矫正术。     

Spectral analysis of some independences on multiple-valued logical functions on their variables

There are many kinds of special relationships between multiple-valued logical functions and their variables, and they are difficult to be judged from their expressions. In this paper, some sufficient and necessary conditions of the independence and statistical independence of multiple-valued logical functions on their variables are given. Some conditions of algebraic independence of multiple-valued logical functions on some of their variables and the way to degenerate a function to the greatest extent are proposed, and some applications of these results are indicated. All the results are studied by using Chrestenson spectral techniques.     

SPECTRAL ANALYSIS OF SOME INDEPENDENCES OF MULTIPLE-VALUED LOGICAL FUNCTIONS ON THEIR VARIABLES

There are many kinds of special relationships between multiple-valued logical func-tions and their variables, and they are difficult to be judged from their expressions. In thispaper, some sufficient and necessary conditions of the independence and statistical independenceof multiple-valued logical functions on their variables are given. Some conditions of algebraicindependence of multiple-valued logical functions on some of their variables and the way to de-generate a function to the greatest extent are proposed, and some applications of these resultsare indicated. All the results are studied by using Chrestenson spectral techniques.     

亚稳态惰性原子与SOCl_2传能反应产物SO(A)的发射光谱和强度分析

本文在流动余辉装置上,利用亚稳态惰性气体原子[He(2~3S)、Ne(~3P_(0,2))、Ar(~3P_(0,2))]与SOCl_2的专能反应,在(230-430nm)波段观察到了产物的发射谱,光谱归属为自由基SO(A~3∏_(2,1,0)→X~3∑~-)的跃迁。对光谱强度分析表明:SO(A→X)的偶极跃迁矩Re随核间距明显地变化。通过拟合,找出了这一变化的关系。另外,本文还计算了SO(A~3∏_0→X~3∑~-)跃迁的Franck-Condon因子。     

采用区内C／I平衡的多区峰窝CDMA系统下行链路的性能

本文对采用区内Ｃ／Ｉ平衡的多区蜂窝ＣＤＭＡ系统下行链路的性能进行分析，给出两种区内Ｃ／Ｉ平衡算法并比较它们的性能，考虑呈对数正态分布的阴影和Ｒ＾－４规律的路径损失的综合影响，采用与传统不同的小区平均中断概率来评价系统的性能。     

时域处理模式扩频系统

本文介绍了表面声波(SAW)存储相关器的结构和工作原理;提出了SAW存储相关器时域处理模式扩频系统;分析了系统的误码率和抗干扰性能;并进行了实验。理论分析和实验结果基本一致。     

A new acoustic perceptual1 model

On the basis of psychological acoustic theories and experiments, this paper proposes an acoustic model which is based on acoustic perceptual feature. Compared with the physiological acoustics based acoustic model, this model is more suitable to represent human’s perceptual features of continuous speech, so it is suitable for recognition of continuous speech.     

一种便于观测的信号抽样及复原方法

利用倍频器，将重复频率与连续信号ｔ（ｔ）的频率相同的方波进行若干次倍频后，对连续信号进行抽样，从而获得离散的抽样信号ｆｓ（ｔ），再利用有源低通滤波器使其复原成连续信号ｆ（ｔ）。避免了一般抽样器不便于观测的缺点。