干扰的

By using a switch in proper time, the front and lagging edges of pulse can be cut off, so that the seperated Walsh subcarriers are obtained, they are the orthogonal functions ...

而误差的主要来源是射频通道非线性引起的交叉干扰，但在目前射频通道的一般水平上交叉干扰最大值小于5％，这已满足一般的工程要求。因此SDM作为一个与FDM和TDM相平行的多路复用系统是完全能用于遥测中的。

Polarization filtering technique is widely used in many fields, for example interference suppression of sky wave in HF radar. Based on the actual wave data of both signal and clutter, the cause for generation of error, way of error reduction and improvement of SIR by using polarization filtering technique are discussed.

极化滤波技术在高频雷达抗天波干扰等领域有着广泛的应用，结合实际雷达测得的目标回波和干扰回波矢量数据，对极化滤波误差产生的原因、减小误差的方法以及利用极化滤波方法提高信干比的有效性进行了详细分析。

We compared various kinds of existing MC-CDMA systems, and chose one of them as our system model, which has greater spreading gain in each subchannel and the spectrums of adjacent subchannels overlay each other. This chosen system model has the advantages in respect of the system capacity, the length of PN code, and the ability in anti-multipath fading.

在多载波并行传输系统中，信道的畸变会引起各载波子信道之间的相互串扰和同一子信道上的码间干扰，通过对每一子信道上的信号波形加窗成形，可以有效地克服这两种干扰，这一结论在多载波并行传输的CDMA系统中同样成立。

Nowadays with the booming development of microelectronic technique, the functions of the components of machinery, electricity, magnetism, optics, acoustics and thermotics have been improved rapidly. And the micromation of components, the integration of electronic equipments, the worse working environment, the increasing requirement and EMI, all of these make the structural design of electronic equipments more and more important.

在微电子学高度发展的今天，促使机、电、磁、光、声和热等元器件功能飞速提高，随着元器件微型化，电子设备趋向集成化，再加上一些日趋恶劣的工作环境，各种使用要求的提高，空间电磁环境的干扰，以及由于装填密度高，产生的内在干扰等，使得电子设备的结构设计变得越来越重要。

The RT-PCR product was inserted into pTG19-T vector and transformed into E. coli successfully. By blastn, the sequence results of Kunming mus musculus were in complete accordance with the conservative sequence of Genbank NR_003278 (791bp-1153bp). By Blastn in NCBI, the sequence with little difference among animals was confirmed to be conservative. After Blastn, fourteen complete CDS coding for different animals were chosen. According to VECTOR NIT 9.0 software, the similarities between Kunming mus musculus and bos taurus, homo sapiens, erinaceus europaeus, cricetulus griseus, sus scrofa, dasypus novemcinctus, rattus norvegicus, rabbit, equus caballus, macaca fascicularis, didelphis virginiana, monodelphis domestica and vombatus ursinus was 67%, 100%, 100%, 36%, 100%, 100%, 67%, 100%, 100%, 92%, 99%, 99% and 99%. In the phylogenetic tress constructed with the forteen 18S rRNA by Treeview, the Kunming mus musculus clustered with cricetulus griseus, sus scrofa and rabbit, which was nearer to cricetulus griseus and was most far away from macaca fascicularis.(3) After sencodary structure analyses of 18S rRNA of mus musculus, an oligonucleotide fragment for RNAi was designed and synthesized, which was transformed into plasmid, and restriction enzyme analyses and sequencing results should the expression plasmid pGPH1/ GFP/Neo-mouse-sh 18S rRNA were constructed for RNAi successfully.

结果①通过RT-PCR检测显示18S rRNA基因在小鼠卵巢组织和单个GV期、MⅠ期卵母细胞中均有表达，且在未成熟卵母细胞中，MⅠ期的表达明显强于GV期的表达；②RT-PCR产物克隆测序结果显示：昆明小鼠18S rRNA基因保守区序列与基因库序列[NR_003278保守区部分(791bp～1153bp)]完全一致；Blastn比对结果发现：在不同物种中差异较小，选出14种生物18S rRNA全序列经VECTOR NIT 9.0软件分析，提示昆明小鼠18SrRNA与牛、人类、刺猬、中国仓鼠、猪、犰狳、褐鼠、兔子、马、食蟹猴、负鼠、短尾猊、袋熊的18S rRNA的相似率依次为67%，100%，100%，36%，100%，100%，67%，100%，100%，92%，99%，99%，99%；Clustal 1.81和Treeview构建出的分子进化树表明：在上述14种生物中昆明小鼠与中国仓鼠进化关系最近，与兔子、猪聚成一簇，与食蟹猴进化关系最远；③根据18S rRNA二级结构设计并合成RNA干扰寡核苷酸片段，重组质粒经过限制性内切酶及测序表明成功构建了pGPH1/GFP/Neo-mouse-sh 18S rRNA干扰表达质粒。

The Constant Modulus Algorithm antenna arrays in the GSM systems are analyzed, CMA arrays can overcome the CCI from the intercells and partially overcome the ISI. The CMA is nonsensitive with the phase shift. The CMA criteria having real part and imaginary part can decreased the reliance of the sequentially temporal equalizer and carrier tracking measures

最后本文研究了CMA阵列天线在GSM移动通信系统中应用的可能性，CMA阵列可以有效地克服共道干扰CCI，部分克服码间干扰ISI，这样一种对相位不敏感的盲算法必须进行后处理，考虑复数的实部和虚部的CMA准则能够减少对后序处理的依赖程度。

Distinguishing from the former researches about CR service communication interruption, only spectrum handoff times exceed a certain number, communication interruption will occur. This strategy can reduce the COP of CR services.(3) Some coexistence issues between WRAN and DTV system are studiedFirstly, the network architecture, system parameters, and self-coexistence of Wireless Regional Area Network are investigated, and convergent performances among overlapping Base Station are simulated and validated. Then, a simple coexistent scenario between WRAN and Digital TV is designed to analyze the interference from WRAN BS to DTV receiver.

3研究了WRAN和DTV系统共存时的若干问题首先对无线区域网(Wireless Regional Area Network，WRAN)本身网络结构、系统参数和自共存机制进行了研究，仿真验证了WRAN重叠覆盖区基站(Base Station，BS)之间同步的收敛性能；接着设计了一种分析WRAN BS干扰数字电视(Digital TV，DTV)接收机的共存场景，通过研究发现了一些干扰控制的临界值，这些临界值对于WRAN的设计和部署具有指导性意义。

The performance effects and jamming mechanisms of CCD, IR detector and tracking system are researched in detail when laser irradiates them. Based on the composing and working principle of CCD and IR detector, the photo-electricity characteristic of them are studied and the saturation effects of them induced by laser are also analyzed.

从CCD 及红外单元探测器的基本组成及工作原理出发，研究了二者的光电特性，分析了激光辐照CCD 及红外单元探测器件的光学饱和效应以及视场外激光对CCD 的干扰中所需要考虑的两种光学效应及干扰机理，并开展了脉冲、连续YAG 激光对KA-320 型CCD 的辐照实验。

The production methods are proponed firstly and jamming effect of multi-false-target jamming is analyzed in detail for two kinds of CFAR process,and some valuable conclusions are drown that the multi-false-target jamming effect is similar to the noise jamming effect when these false targets are fairly dense .

在讨论密集多假目标产生方法的基础上，针对两种不同的恒虚警处理，详细分析了密集多假目标的干扰效果，得到一些有价值的结论：当密集程度较高时，多假目标干扰可以起到类似噪声的压制作用，最后进行了仿真验证。

The recovery strategy for the customer time window disruption is given,to guide to design the other recovery strategy for the VRPTW disruption;By setting the single dummy depot or the multiple dummy depots,the transition that the jump-offs of vehicles on the way are reposited to the depot is proposed,making the algorithm for the VRPTW solve the disruption recovery model as before;the customer time window disruption is analyzed,to help measure the other deviation for VRPTW;A new handling constraint method based on genetic algorithm is designed,avoiding the difficulty of selecting the penalty factor in penalty strategy and makes the handling constrain simplify.

本文给出了客户时间窗变动的扰动恢复策略，可以指导设计VRPTW其他扰动恢复策略；通过设定虚拟单车场或虚拟多车场，将干扰发生在途车辆的起点复位到车场，使VRPTW求解算法同样可以用于处理扰动恢复模型；对客户时间窗变动对系统造成的干扰进行了度量，为VRPTW其他扰动度量提供了指导；设计了一种新的约束处理方法，避免了惩罚策略中选取惩罚因子的困难，使得约束处理问题简单化。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。