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The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.

本文的主要研究工作和贡献如下：●提出了一种基于窄带处理的FH信号盲检测和参数盲估计的实现方法，即首先求出多路信号之间的互相关，进而得到互功率谱密度矩阵，然后通过对CSDM进行对折处理来抑制噪声、定频信号及其他干扰的影响，并将所有属于FH信号的hop(每一跳的驻留时间在时频图上持续的线段)从CSDM中筛选出来，最后用阵列信号处理中的到达方向估计理论在频域中估计出各个hop的方向参数，利用方位信息完成FH信号分离并得到FH信号的数目及其各自的参数集；●提出了一种确定FH信号检测门限的策略，该策略不仅使得检测门限能够通过理论计算得到，而且还显著地抑制了非跳频信号的干扰，从而能有效地检测出FH信号；●提出了一种基于宽带处理的短波FH信号盲检测和参数盲估计的实现方法，即首先利用宽带空间谱测向技术得到接收信号的DOA，然后采用宽带波束形成技术对特定方向进行空间滤波，实现多个信号的分离，最后分别提出了两种FH信号的盲检测和参数盲估计方法，第一种方法适用于空间某个特定方向上存在着几个驻留时间不同的恒跳速FH信号和其他干扰信号的混合信号，第二种方法适用于空间某个特定方向上仅含一个可变跳速的FH信号和噪声的混合信号；●将空间插值的概念和宽带波束形成技术结合起来，提出了一种基于频域处理的宽带恒定束宽的波束形成方法。

When you ask so many questions that your mom does not know how to answer While you sit at the front of your mom's bike When you jump into water while your dad is not watching you While you do not know how to swim and cry to ask for your dad's help When you are proud of yourself as your teacher visiting your home While most of your classmates are fear of your teacher's home visiting You are in the first decade of your life When you start to compete at school after taking your parents' suggestion As you know studying hard is the only way to change your life When you are lazy on-campus while not at home As you want to be different to your classmates When you are dreaming to move to your capital for further study As you want to get into the best school in the nation You are in the second decade of your life When you are surprised there are so many smart classmates around you After you leave your hometown and ride on your bike in the most beautiful campus When you start to treat English like your native language After you see so many schoolmates go abroad by passing English test When you are in a plane for the first time heading towards a strange land After your pass so many tests and contact so many professors You are in the third decade of your life When you surprises your peers who say why Chinese are so smart When you are out of joy after owning your first used car When your local roommate asks for a coffee after coaching you on how to drive When your advisor complains you are running too fast When you turn down one job offer and go for another When you work in the industry as a CEO-under-training You are in the third decade of your life When your customer becomes your boss When your freedom becomes your burden When your daily job is to create jobs When you nightly job is to create poems When no town becomes your hometown When no land becomes your homeland You are in the fourth decade of your life How many decades have you gone through?

十年 当你问这么多问题，你的妈妈不知道如何回答当你坐在前面的你妈妈的自行车当你跳入水中，而你爸爸不是看着你虽然你不知道如何游泳，并大声呼喊请你爸爸的帮助当你感到自豪的是自己作为你的老师您的家庭访问虽然大多数的同学都担心你的老师的家访您是在第1个十年的生活当您开始在学校的竞争后，你的父母的建议如你所知勤奋学习是唯一的方法来改变你的生活当你懒惰的校园虽然没有在家里如您想成为不同，你的同学当你梦想转移到你的资本，为进一步研究如您想进入最好的学校在全国您的第2个十年的生活当你感到惊讶有这么多聪明的你周围的同学当您离开您的家乡，你骑自行车在最美丽的校园当您开始像对待你的英语母语当您看到这么多同学出国通过英语测试当你在飞机第一次走向一个陌生的土地您传球后这么多的试验和接触这么多的教授您的第3个十年的生活当您惊喜您的同行说，谁，为什么中国如此聪明当你的喜悦当你自己你的第一个二手车当你的室友问当地的一个咖啡教练后，您就如何推动当您的顾问抱怨您正在运行速度太快当您打开了一个工作机会并转到另一个当您工作的行业作为一个首席执行官下训练您的第3个十年的生活当你的客户成为你的老板当你的自由成为你的负担当您每天的工作是创造就业机会当你每晚的工作是撰写诗歌如果没有城市成为您的故乡如果没有国家成为您的祖国您的第4个十年的生活几十年来多少，你经历？

Well,one reason is the way they're treated once they get there. The people at Disney go out of their way to serve their "guests"as they prefer to call them and to see that they enjoy themselves. All new employees, from vice presidents to part-time workers , begin their employment by attending Disney University and taking "Traditions I ", Here, they learn about the company's history! How it is managed and why it is successful. They are shown how each department relates to the whole. All employees are shown how their part is important in making the park a success. After passing "Traditions I", the employees go on to more specialized training for their specific job. No detail is missed. A simple job like taking tickets requires four eight-hour days of training. When one ticket taker was asked why it took so much training for such a simple, ordinary job, he replied,"What happens if someone wants to know where the restrooms are, when the parade starts or what bus to take back to the campgrounds? We need to know the answers or where to get them quickly. Our constant aim is to help our guests enjoy the party."

其中一个原因就是他们落地便受到的待遇，迪士尼的侍者总是不遗余力的以讨好&客人&并让他们满足所有的员工，从副总到临时工，在从业前都要读迪士尼大学并主修&传统I&在这里他们学习迪士尼的历史，如何管理与为何成功，他们也要全方位的了解各个部门的联系，每个员工都要了解他们份内的工作的重要性以及如何使主题公园经营更加成功但完成&传统I&课程后员工们将深入了解并投入他们各个职位的专项训练课程，细节毫无疏漏一个简单的剪片工作也需要4个8小时工作日来进行训练当一位检票员被问及为何这种索然无味的工作也要那么长的训练时间，他如是说：如果有客人问道洗手间怎么走，大游行什么时候开始或者哪辆巴士能把他们送回营地，我们必须知道答案或已最快的带他们到那里，我们持续的目标就让客人享受他们的盛宴。

Claire Danes, If You Ever Get a Nose Job, I Swear to Jesus I'll Hang Myself.

丹尼斯，如果你得到一个鼻子的工作，我对上帝发誓我将去上吊。

He did not have time to get a card-carrying reporter''s job, since he was imprisoned two months after graduating from university.

他还没来得及得到得到一份携带记者证的工作，因为他刚从大学毕业就被关进监狱两个月。

He did not have time to get a card-carrying reporter's job, since he was imprisoned two months after graduating from university.

他还没来得及得到一张记者证，因为刚从大学毕业他就被关进监狱了两个月。

I do not have much of a budget for this at this time so if you wish to bid high that is up to you but you will not get the job.

我并没有让我们在这个时候，如果你想出价高，达到你，但你不会得到这份工作的一大部分预算。

Zagosh, when you get yourself a job, then you can be my fuckin' P.O.

泽格什，当你自己有了份工作，再来做我的监护人。

Everyone loves to get this phone call:"This is Jane Doe. I'm calling to see if you would like to come in for a job interview."

每一个人都希望接到这样的电话：这里是简土恩，我想你可以到我们这里来作一个面试。

It will take me another five to ten years tostruggle with english just to get a lower income job in canada.

而在加拿大，我将需要五到十年的时间来和英语搏斗，才能达到一个低收入工作的水平。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。