基于混合编程技术的AOCC应用软件快速仿真平台

介绍基于混合编程技术的AOCC应用软件的快速仿真平台的整体框架设计以及具体实现．基于该方法构建的快速仿真平台，能够满足软件开发人员对基于8086汇编语言开发的AOCC应用软件开、闭环调试和测试的要求，对提高软件的开发效率和保证软件的质量有积极意义．     

Matching suitable feature construction for SAR images based on evolutionary synthesis strategy

In the paper,a set of algorithms to construct synthetic aperture radar（SAR）matching suitable features are frstly proposed based on the evolutionary synthesis strategy.During the process,on the one hand,the indexes of primary matching suitable features（PMSFs）are designed based on the characteristics of image texture,SAR imaging and SAR matching algorithm,which is a process involving expertise;on the other hand,by designing a synthesized operation expression tree based on PMSFs,a much more flexible expression form of synthesized features is built,which greatly expands the construction space.Then,the genetic algorithm-based optimized searching process is employed to search the synthesized matching suitable feature（SMSF）with the highest effciency,largely improving the optimized searching effciency.In addition,the experimental results of the airborne synthetic aperture radar ortho-images of C-band and P-band show that the SMSFs gained via the algorithms can reflect the matching suitability of SAR images accurately and the matching probabilities of selected matching suitable areas of ortho-images could reach 99±0.5%.     

航天器共因失效分析与预防初探

简要介绍了共因失效相关概念及分析方法,通过共因失效案例分析,对航天器如何开展共因失效分析以及如何预防共因失效进行了初步探讨,提出了航天器开展共因失效分析的定性和定量方法以及预防共因失效的措施。     

频域盲源分离的非圆信号推广

作为盲源分离（BSS）问题的最有效解决方法之一,独立分量分析（ICA）算法可以分为时域和频域算法两类.将时域盲源分离的快速算法推广到频域,通过在频域中应用非圆信号的伪协方差矩阵,推导出一个新的固定点算法来解决线性瞬时混合的非圆信号盲源分离（BNSS）问题.仿真实验验证了该算法的有效性.     

酸性磺酞类染料共振Rayleigh散射光谱法测定奈替米星

用共振Rayleigh散射（RRS）光谱研究了酸性磺酞类染料溴甲酚绿和溴酚蓝分别与奈替米星的相互作用.溴甲酚绿和溴酚蓝在酸性介质中分别与奈替米星相互作用,导致RRS光谱显著增强,最大的RRS峰分别位于606nm和572nm处,散射强度与奈替米星的质量浓度在一定的范围内成正比.此方法具有很高的灵敏度,对于奈替米星的检测限（3σ）分别为30ng/mL和10ng/mL,据此发展了一种测定奈替米星的新方法.     

Subsidence rate monitoring of Aghajari oil field based on Differential SAR Interferometry

Land subsidence, due to natural or anthropogenic processes, causes significant costs in both economic and structural aspects. That part of subsidence observed most is the result of human activities, which relates to underground exploitation. Since the gradual surface deformation is a consequence of hydrocarbon reservoirs extraction, the process of displacement monitoring is amongst the petroleum industry priorities. Nowadays, Differential SAR Interferometry, in which satellite images are utilized for elevation change detection and analysis – in a millimetre scale, has proved to be a more real-time and cost-effective technology in contrast to the traditional surveying method. In this study, surface displacements in Aghajari oil field, i.e. one of the most industrious Iranian hydrocarbon sites, are being examined using radar observations. As in a number of interferograms, the production wells inspection reveals that surface deformation signals develop likely due to extraction in a period of several months. In other words, different subsidence or uplift rates and deformation styles occur locally depending on the geological conditions and excavation rates in place.     

机械蝴蝶模型悬停飞行的流动显示实验

为了探索蝴蝶独特的外形及运动模式下蕴含的流动机理，与以往只考虑翅膀气动影响的拍动翼实验不同，我们开发了一种同时考虑身体及翅膀的机械系统用以模拟蝴蝶的悬停飞行，并采用染色液流动显示的方法对升力的主要来源——前缘涡进行了细致的观测。结果显示，在蝴蝶飞行的上下拍动过程中均有前缘涡产生，且不是以往观测到的螺旋或锥状结构，而是近似等直径的柱状联通形式，其明显特征为：在拍动加速阶段存在明显的展向流动，而在减速阶段则会出现破裂；另外，蝴蝶看似杂乱无章的运动实际上是一种自适应控制的结果，有助于提高升力。     

Very low frequency interferometry for the Chang’E-2 project

Very low frequency interferometry among two astronomical experiments has been proposed and accepted for further study for the second phase of China’s lunar exploration programme (the Chang’E Programme), which is envisaged to operate a lander and a rover on the surface of the moon. This experiment is an interferometer experiment in the very low frequency (VLF, f < 15 MHz) regime of radio frequencies with at least degree-level angular resolution. The goals include observing solar storm activities, Coronal Mass Ejections, Auroral Kilometric Radiation, and planetary radiation in the solar system, studying the origin of Cosmic Rays, spectral properties of pulsars, surveying ionized hydrogen in the Galaxy, and exploring coherent radio emissions.     

刀口法测量高斯光束腰斑大小实验设计

本文设计了利用刀口测量的高斯光束腰斑大小的测量实验装置，并阐述了具体的测量过程。此方法用于μｍ级激光光斑大小测量是可行的，实验装置简单实用。     

使用ASIC芯片实现高清视频编码的设计

本文以高清视频编码为切入点,首先介绍了一款高性能的视频编码ASIC芯片FH8735,然后通过对视频编码设备整体框架的设计介绍,引入了视频编码设备的硬件原理设计方案和软件设计方案,硬件设计方案以不同输入视频格式的种类为章节详细叙述了几种常用视频编码的原理设计,软件设计方案从软件架构和软件流程上对视频编码设备软件进行了讨论。可以看出,ASIC芯片以其独有的优势使得视频编码设备设计越来越简单、功能越来越强大、性能越来越可靠。