8万门母片系列电路测试软件开发及COMPASS门阵列库单元测试验证技术

JSC710XX是我国第一块利用COMPASS8万门门阵母片正向设计的超大规模集成电路，我们在DIC8032测试系统上开发出测试软件，对该电路的功能和参数进行了较完整的测试，也验证了COMPASS门阵列库单元。     

Instability of zeolite Y supported cobalt sulfide hydrotreating catalysts in the absence of H2S

Ion exchanged CoNaY was sulfided at 473 and 673 K and subsequently heated in He at 673 and 773 K. The resulting samples were characterized by means of overall sulfur analysis, temperature programmed Ar treatment and Fourier transform infrared spectroscopy. It was shown that during He flushing at sufficiently high temperature a protolysis reaction occurs resulting in the decomposition of Co sulfide into Co²⁺ ions and H₂S.     

Modified Imidazoles: Degradation Inhibitors and Adhesion Promoters for Polyimide Films on Copper Substrates

Polyimide films on copper substrates that are exposed to elevated temperatures and an oxidizing environment will be subject to degradation. In order to halt this degradation without changing the properties of the system, a polymeric agent could be placed between the polyimide and the copper. This paper will investigate three such materials that will not only slow down the degradation of the polyimide and the oxidation of the copper, but will also improve adhesion within the system. Fourier transform infrared reflection-absorption spectroscopy (FTIR-RAS) will be used to investigate the polyimide/polymeric agent/copper system.     

X波段双极化有源相控阵天线的设计

机载或星载X波段有源相控阵雷达系统具有很高的分辨率，由于雷达系统使用了大量双极化子阵组成的有源相控阵天线（俯仰面和方位面均需扫描），频率的升高使得子阵馈线网络的可用面积受到了很大的限制。本文着重论述了有源相控阵天线中的双极化阵设计，提出了一系列解决方法，进而叙述了整个天线阵的设计。     

Robot Pose Estimation in Unknown Environments by Matching 2D Range Scans

A mobile robot exploring an unknown environment has no absolute frame of reference for its position, other than features it detects through its sensors. Using distinguishable landmarks is one possible approach, but it requires solving the object recognition problem. In particular, when the robot uses two-dimensional laser range scans for localization, it is difficult to accurately detect and localize landmarks in the environment (such as corners and occlusions) from the range scans.In this paper, we develop two new iterative algorithms to register a range scan to a previous scan so as to compute relative robot positions in an unknown environment, that avoid the above problems. The first algorithm is based on matching data points with tangent directions in two scans and minimizing a distance function in order to solve the displacement between the scans. The second algorithm establishes correspondences between points in the two scans and then solves the point-to-point least-squares problem to compute the relative pose of the two scans. Our methods work in curved environments and can handle partial occlusions by rejecting outliers.     

类金刚石薄膜作为MgF2红外增透和保护膜的研究

系统地研究了ＭｇＦ２衬底上类金刚石薄膜的折射率和生长速率与淀积工艺之间的关系，在ＭｇＦ２衬底上成功地设计并制备了红外增透和保护膜。理论与实验研究表明，类金刚石薄膜使ＭｇＦ２的红外透过率提高３％以上是完全可靠的，但起红外增透和保护是作用的统一性问题仍有待进一步研究。     

利用垂直阵列构作Cartesian认证码

利用垂直阵列构作了一类Cartesian认证码,计算了它们的参数,并且在编码规则按等概率分布选取时,成功的模仿攻击和成功的替换攻击概率也被算出。     

行为级DSP算法描述的阵列处理器综合方法研究

本文提出了针对递归DSP算法的高层次系统综合流程,并以脉动(systolic)式处理器阵列结构实现.从DSP算法的FDDL行为级描述开始,经由编译及划分,产生数据相关流图(Data Dependency Graph),然后实现对算法流图的空间映射及时域规划,得到算法的信号流图(Signal Flow Graph),经时序重构,生成脉动阵列,最后实现对处理器单元的数据路径综合及控制器综合,并对处理器单元定位,本文同时提出了各设计阶段的算法策略及优化策略,并给出综合结果。     

Self-co-operative ternary pulse-compression sequences

An algorithm called a Hamming scan was developed recently for obtaining sequences with large merit factors and is adopted here to obtain such sequences within which there are nontrivial segments of large merit factors. Correlative detection of the return signal can be based simultaneously on the entire sequence and its segments with large merit factors. Such a coincidence detection scheme can be characterized by a Schur merit factor of the sequence. Sequences with large Schur merit factors are listed.     

TiO_2载体表面酸性的研究

利用NH_3吸附和吡啶吸附红外技术研究TiO_2的制备条件对其表面酸性的影响。结果表明,用NH_3水中和TiCl_4溶液方法制备的TiO_2(A)表面有较强的L酸中心,中和条件对表面酸性中心数目和强度有显著影响。由TiOSO_4水解方法制备的TiO_2(B)表面具有较强的L酸中心和较弱的B酸中心,引入不同添加剂可有效地调变TiO_2载体表面的酸性。