Wednesday, April 7, 2010

satellite communication

Broadband satellite communication, which inherits many advantages such as broad coverage, simple network topology and so on of conventional satellite communication will provide a variety of services including data transmission, multimedia and mobile communication with higher data rate and reliability. Phase shift keying (PSK) modulation has been widely used in cheap polo shirts digital video broadcasting satellite system (DVB-S) and the Iridium system. Synchronization technology is employed to achieve better performance of satellite demodulator.A feasible digital implementation design of timing synchronization and frequency offset correction module which are important Lacoste Polo Shirts elements of broadband satellite modulator is provided to meet the requirements of specific project. The content of this dissertation is summarized as below.Brief introduction of broadband satellite communication, illustration of the chi hair straighteners project background and content arrangement are Lacoste Shirts presented at the beginning.Description of a specific QPSK all digital receiver design consist of decimation, match filter, digital chi flat iron , symbol timing synchronization module, frequency offset women's nike shoes correction module and decoding module is included in the following chapter. Project requirements have been taken into chi flat iron account during the design process.An open loop design of both timing synchronization and frequency offset correction which will lead to better loop behavior is provided for all digital demodulation.
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