Broadband Wireless Ad Hoc Network

Wireless Ad Hoc network is a kind of peer-to-peer network.Due to its distinguishing characteristics such as:no control center,multi-hop,convenient network build-up,wireless Ad Hoc network is being rapidly applied in military field, natural calamity and remote area.Wireless Ad Hoc network is currently a research focus.The dissertation focuses on baseband research on backbone nodes which construct the Ad Hoc network.Firstly,the dissertation proposes the target of the baseband system and confirms the system architecture and some key parameters.OFDM can combat multipath fading and has high spectral utilization,so we use this technology in the baseband design.Secondly,the dissertation discusses some key points on baseband,which contain coding & decoding technology and synchronization technology.Through simulation, we find that the timing synchronization algorithm correlated with local sequence can get a good result.The simulation result proves that 1-bit correlator can be implemented in the timing synchronization.The baseband system has been simulated with Matlab,which can offer guidance for the followed FPGA implementation.Finally,the dissertation describes the hardware and FPGA implementation.The master controller in the baseband system is Virtex-4 FX60 FPGA,which controls a lot of devices,such as AD,DA,and DDR.Most functions of baseband system are realized with FPGA,including CRC coding and verify,scrambler,convolutional coding,Viterbi decoding,OFDM modulation and demodulation,timing synchronization and carrier synchronization.At last,the test result of the baseband system is proposed and the test result in FPGA is right.

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1.Responsible for new project development, leading function team to follow up the APQP process based on special requiremnt ;Are there polo shirts you would like?2.Organize and lead relevant depts to keep target project schedule, and can develop new suppliers independently; 2. Be familiar with international business process, such as order receiving, shipment arrangement, payment checking and follow up issues, aslo can do all above things independently; 3. Can communicate with foreign customers both in written and oral English directly. 4. Good communication ability, strong sense of responsibility, also willing to work under pressure. Achievement2006-08 － 2007-10：Here is the best northface outlet!Autoliv T-PART project （airbag connector）In charge APQP process of T-PART project，prepare detail develpo plan based on project shedule requirement，follow up for sample、fixture、tooling statues,Responsible for run trial arrangement and further improvement .Assist customer on process and system audit during all project stages.Monthly sales amount for this project is 700000RMB since start mass production in Dec. This is your favorit chi hair straightener!2007,2008-04 － 2008-07：door and window handle projects for Yale、Avocet、Paddock In charge of hardware projects，follow up for sample、fixture、tooling statues, and responsible for run trial arrangement and further improvement .Assist customer on process and system audit during all project stages.Monthly sales amount for this project is 1500000RMB since start mass production in July. 2008.
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Environment

Health is the most precious thing of everybody. To keep us healthy. there is one thing we can not neglect environment. Many years ago. We might permit the existence of pollutions we were pursuing the industrial progress. Where can I get nike running shoes?But now everybody knows that only possessing a clean environment is the real wealth. Therefore, We need to live in a clean environment. Today. In many modern cities, people suffer from air pollution and water pollution. If we can not solve these problems as soon as possible, the conditions may become more and more serious serious and even beyond remedy. In my opinion, government and citizens should take the responsibility of making our environment clean To begin with. We must wake up people's conscience, so to speak, public-mindedness. Lacking public-mindedness is the chief reason why the environment become so dirty.How much do these cheap straighteners cost? Thus, only when everybody has a sense of public-mindedness can our society be tidy. Second, the government ought to make strict laws to make strict laws to prevent vehicles and factories from polluting., Many rivers and streams in Taiwan have become yellow and black. How can you believe that the water you drink everyday is originally so dirty? Besides, vehicles, especially buses, emit fumes which can dim the sun for a while. The smoke from their Exhaust pipes makes people hard to breathe. So, making strict laws is also an urgent step to keep our environment clean. As a matter of fact, I really want to put those who keep on polluting to death. They are the most horrible murderer in the world, for they kill and make people poisoned with the pollutants little by little. Can you picture what this world would be like if we didn’t have clean air to breathe and pure water to drink? The sky we see would be black, there would be “garbage mountains” everywhere. Nobody can live in such a chaotic environment. So let us struggle together for a clean environment. Not only for ourselves, but also for our descendants. Everyone wants to get cheap Lacoste POLO Shirts.In so doing. We can be really proud of being a modern citizen. We Need to Live in a Clean Environment The years ago, while I was an elementary school pupils there was a stream near my house. My sisters and I always regarded it as our “paradise.” When school was over, we used to catch little fish there, fight a water fight there, hold a “river’s wedding” there by dropping flowers onto the water. By the river bank we liked to fly kites for a race to see whose kite was the highest to reach the sky. Pure stream, Open field, and blue sky filled our childhood. Now, ten years later since then, the pure stream no longer existed. A lot of factories have been built on the field. Green grass vanished; the blue sky disappeared, too.
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1. In charge of new project , can souring new suppliers independantly;Cheap Nike shoes are very nice here! 2. Be familiar with all sales issue, which including order receive,production schedule follow up,delivery arrangement,as well as payment checking and confirmation；3. Communicate with all foreigner customers in written and oral english directly. I love northface jackets.with a strong sense of responsibility, decent coordination skills, and can can work under high pressure efficiency.

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A Touching Moment

Three years’ job taking has changed me too much. Such changes have been going on silently, and slowly. I was really a hard-working college student at that time: attending north face jackets, memorizing words and sentences, and finishing homework attentively. Spending a weekend without any study could make me crazy. I could make a living on 150 RMB a month without any complaints.But now I cannot bear all cheap north face jackets. I am not willing to sit in a classroom, full of diligent students, to study for several hours. It is a kind of suffering and waste of time now. Of course I am not able to survive with only a few hundred Yuan at present. I want more in this material and concrete world.Last June I was late for work for about 30 minutes. My boss, a very strict and cruel man, deducted me thirty Yuan and criticized me at one meeting .I was so angry that I swore: I must work very, very hard to earn money, and also I must become a much bigger and bigger boss. So I did almost everything to improve my salary, including taking the postgraduate examination of this year ,for I know that a young lady should first improve her education to obtain a higher social position.Finally I came here-a famous key university of china.But now everything is different from what I have once imagined: countless courses, endless papers and dull contents. I find I cannot get myself accustomed to the pure college life, and this inner thought has already been reflected on my northface jackets. In one word, I take study for granted. Then one day my teacher Tom said to me: ‘do not think that now your task has been accomplished. It is just a new start. There is still more to learn and nothing is useless and maybe one day you will find what you learned years ago is very useful. So learn harder and harder, deeper and deeper. Do not give yourself up easily. You are still on the stage of growing. Contemplate when learning. You can think over my words later.’ I was very moved at that moment. I did not know what to say and only realized that I was horribly superficial.Later before the National Day I e-mailed a thank-you note to him and he returned to me, ‘wish you happy. Work hard!’I will. Thank you, dear Tom!