理性预期学派的经济理论和政策主张

预期不仅影响经济主体的微观决策，而且影响政府经济政策的宏观效果。理性预期学派的经济理论和政策主张是不科学的，但其理性预期的宏观经济模型不无借鉴意义。我国应加强对预期问题的研究及其应用

海洋资源利用的博弈分析

海洋对人类的生命和健康以及生态系统是至关重要的 ,但目前我国的海洋资源利用不合理 ,海洋资源严重浪费。本文将博弈论运用于海洋公共资源利用中 ,引入“政府”作为局中人 ,建立了一个特殊的完全信息动态博弈模型———带有控制的博弈模型 ,解决个人利益和集体利益的矛盾 ,实现了资源的最优利用和配置 ,为政府决策和管理提供参考。国家自然科学基金资助项目 (79970 0 79

一种结合空间域内和小波域内边缘检测结果的去噪方法

为了有效降低图像噪声且不使图像边缘模糊,本文提出一种将空间域内和小波域内边缘检测结果结合起来的去噪方法。实验结果表明,该方法能达到比现有图像去噪方法更好的去噪效果。国家自然科学基金(79970079

The Application of Security Control in Investment

根据我国投资机制的特点,建立“钓鱼”型投资模型,用警戒控制器设计方法求出使国内生产总值达到期望值波动幅度最小的控制策略。A "fishing"investment model is established according to characteristics of the investment mechanism in China. By using design method of security control,a control strategy under which gross products at home fluctuates within the narrowest range is obtained

A Control Strategy and Model for Fished Investment

根据我国“钓鱼”投资的特点 ,建立一类钓鱼投资模型 .同时利用我国的实际统计数据 ,进行建模及其控制策略设计 ,由此得出国内生产总值在控制策略作用下波动幅度最小 ,这是促进经济增长良性循环的重要前提 .A "fished" investment model is obtained and modified by Hicks model. By using statistical data in China, a model is obtained and a control algorithm is designed. Gross domestic products of the system fluctuates within a narrowest range under the control of minimum variance strategy I t. This is the important premise to promote the economic growth in a virtual circle.国家自然科学基金 (79970 0 79);; 福建省自然科学基金 (F9810 0 0 3 )资助项

超前消费效用最大的一个必要条件

传统的消费效用分析,是根据市场价格信息,在现有收入水平前提下,讨论如何选择商品,以达到效用最大。随着社会改革,人们消费观念的变化,贷款超前消费已成时尚。文章对这种贷款超前消费进行讨论,得出达到效用最大的必要条件

A Control Strategy For Macroeconomic Model

把宏观经济模型的供需均衡问题，化为求解纯增益控制器的设计.并利用我国的统计数据给出实例计算.The demandsupply equilibrium problems For macroeconomic model are transFormed into a pure gain controller problem.The algorithm of controller is illustrated by an approriate example

Minimum Variance Control For Strochastic Model of National Income

通过对希克斯（HICkS）一般模型的修正，建立一类关于国民收入的ASTrOM模型.由此讨论最小方差控制策略，同时结合我国实际问题进行计算、分析.By modiFying the Hicks model, an Astrom strochastic control model For national income is obtained.Further,the policy of minimum variance control For national income is discussed.The control policy is illustrated by an appropriate example in China.福建省自然科学基

A Control for Optimal Investment

通过对萨缪尔森（ SAM uElSOn）模型的修正，利用我国统计数据，建立投资模型.在此基础上应用最优控制方法，设计出投资的最优策略.结果表明提高政府投资非常重要.An investment model is obtained and modified by Samulson model.Based on this model,the method of optimal control is used.With statistical data in China,the algorithm of control is designed.The result shows that increment of government investment is important.福建省自然科学基

A Comparison Study of Two Kinds of Wavelet Thresholding De-Nois ing

传统的小波去噪算法是对含噪信号的正交小波分解系数硬取阀值或软取阀值(该文提出软取的阀值应大约为硬取阀值的一半),这种算法可能会使重构信号在奇异点邻域产生人为的振荡,即Gibbs现象。能有效消除或减弱振荡的一个有效方法是对含噪信号进行在某个范围内所有可能的循环平移(实际上反向平移小波),然后用阀值估计信号,并对逆平移后的估计取平均得到重构信号。该文研究了平均平移算法的实现及平移范围与去噪效果的关系。De-Noising with traditional wavelet transform is applying the soft or hard thresholding to the coefficients of the noisy signal transformed into an orthogonal wavelet domain(this paper proposes that the soft thresholding should be a half of the hard thresholding).It may produce artifacts on discontinuities of the signal(Gibbs phenomena).One effective method to suppress such artifacts is,for a range of shifts,one shifts the data(in practice people shift the wavelet basis),De-Noises the shifted data,and then unshifts the de-noised data.Doing this for each of a range of shifts and averaging all the results so obtain a reconstruction signal.This paper also studies the realization of averaging shift algorithm as well as the relationship between shift range and de-noising effect.国家自然科学基金(编号:79970079