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Principle and Practice Research of the Joint Receiver

Author: FanJunFeng
Tutor: FuHaiYang
School: Nanjing University of Posts and Telecommunications
Course: Electronics and Communication Engineering
Keywords: TD-SCDMA Smart antenna Joint detection DOA Estimation
CLC: TN929.533
Type: Master's thesis
Year: 2012
Downloads: 12
Quote: 0
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Abstract


At present, China has independent intellectual property rights of the 3G standard TD-SCDMA is facing unprecedented opportunities and challenges . On the one hand , the Chinese government and research institutions devoted a lot of effort to promote its success , and to get a wide range of support ; but on the other hand , from the current results , the data is not to be optimistic , especially WiMax has become one of the 3G standard , TD-SCDMA , also constitute a greater threat . Joint detection is one of the key technologies of TD-SCDMA , but achieve a certain degree of difficulty , and there are some notable problems . TD-SCDMA smart antenna technology core and mandatory when research joint detection , it is necessary to combine the smart antenna , to discuss the formation of the receiver structure . The first mainstream 3G standards overall analysis and comparison , and briefly describes the frame structure of TD-SCDMA system and the key technologies it uses . Then , the analysis of the basic principles of smart antenna system , combined with the TD-SCDMA system model details the basic principles of joint detection , and summed up several of its characteristics . Under certain conditions , the joint detection can completely eliminate multipath interference and multiple access interference but weak against additive noise in the system , its channel estimation rely heavily another as long as the data transfer process a bit error , it will affect the received signal-to-noise ratio of the entire data block , and inter-cell interference powerless . Finally after a large number of relevant literature reference given principles and models for use in the home and local despreading code to eliminate MPI , also given by the model constitutes TD joint receiver (JDM) , and improved joint detection algorithms.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications > Cellular mobile communications systems (mobile phones, mobile phone handsets ) > Code Division Multiple Access (CDMA) mobile communication
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