| 1. | Updated total compensation method for solving composite inversion problem of structural dynamic system
全量补偿复合反演算法的改进及其应用 |
| 2. | Abstract : seismic inversion problems must be solved by non - linear global optimization methods
文摘:地震反演问题常常需要一些非线性全局最优化的方法。 |
| 3. | Study and application of the tem forward and inversion problem of irregular loop source over the layered medium
不规则回线源层状介质瞬变电磁场正反演研究及应用 |
| 4. | The core of the gravity and magnetic data interpretation is inversion problem , namely , forecasting the position of the sources when the geological and geophysical information is insufficient
重磁资料解释的核心问题是反演问题，是在缺乏足够的已知地质与地球物理信息的条件下对场源进行定位预测。 |
| 5. | In this paper , the principles and characteristics of four stochastic optimistic algorithms are summarized , and their performances are analyzed and compared on the applications of seismic inversion problems
作者主要针对地震勘探反演问题的应用综述了这四种非线性随机优化方法的原理和特点，并对它们的性能作了一定的分析和比较。 |
| 6. | The forward problem is solved using a finite element technique in two dimensions that is a foundation of the inversion problem . this paper finished 2 - d finite element forward program based on the theory of 2 - d finite element technique
正演计算是电阻率反演成像的基础，本文从二维有限元基本理论出发，完成了高密度电法的二维有限元正演模拟程序，为后期多方法反演奠定了基础。 |
| 7. | Taking erectophile type continuous vegetation as a example , authors had done many monte carlo simulations , and established empirical analytic expressions of radiances with component temperature , soil emissivity and leaf area index . empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters , such as component temperature , soil emissivity and lai , from thermal infrared 2 channels and 2 angles data . many experiments of genetic algorithm inversion from simulated data were conducted , results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken . comparison between inversion results and ground - truth data has been done . this paper offers a new example to retrieve component temperature from multi - channel , multi - angle thermal infrared data based on the model of directionality of thermal radiance
在热辐射方向性规律的基础上，以喜直型连续植被为例，进行了大量的monte carlo模拟，建立了辐射亮度和组分温度植被叶面积指数及土壤比辐射率之间的经验函数关系。采用遗传算法，从热红外2个波段2个角度数据中，同时反演混合像元组分温度土壤比辐射率和叶面积指数等5个参数。通过对模拟的观测数据进行大量的遗传算法反演试验，结果表明，遗传算法反演组分温度非常稳健，在宽松的先验知识条件下，遗传算法可以解决不确定性反演问题。 |
| 8. | The non - linear inversion methods are developed to overcome the difficulties met when the linear inversion methods are used in the geophysical inversion problems . this paper presents the simulated annealing is hopeful for the inversion problem of resistivity map reconstruction . due to the slow speed caused by the global searching , so for , the method is limited in the processing the 1 - d model
为了克服像传统线性反演方法中解易陷入局部极小的不足，本文采用了模拟退火这种非线性方法实现了高密度电法一维反演，初步取得到较好反演结果，但由于它随机搜索全局解空间，计算量非常大，因此目前主要应用于一维地电结构的反演。 |
| 9. | It can be used to resolve many inversion problems of 2d or 3d local gravity and magnetic sources which extension is finite by inverse directly and iterative modification scientific visualization is a theory , method and skill that translated the data during or after the computation into graph or image , displayed them in the screen and transacted interactively by using the skill of computer graphics and image process
科学计算可视化指的是运用计算机图形学和图像处理技术，将科学计算过程中及计算结果的计算数据转换为图形或图像在屏幕上显示出来并进行交互处理的理论，方法和技术。科学计算可视化的形成是当代科学技术飞速发展的结果。 |
| 10. | Compared with the csa ( classical sa ) , fsa ( fast sa ) and lga , the new versions of the algorithms seem to gain better performance . there are several application examples investigated and presented in the dissertation . de - convolution techniques based on mossa is shown in chapter 7 , underwater acoustic channel estimation and data recovery in chapter 8 , and the inversion problems in underwater sound field in chapter 9 . chapter 10 summarizes the investigation and gives the major conclusions
本研究取得的主要成果有： 1 )多操作结构模拟退火算法( mossa ) ； 2 )归一化遗传算法( nga ) ； 3 )变结构遗传算法和混合式优化算法； 4 ) mossa反卷积处理技术和信道估计方法； 5 )海底特性参数声学反演的ga方法等。 |
