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Sensors & Transducers Journal (ISSN 1726- 5479) |
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Vol. 23, Special Issue, July 2013, pp. 49-53
Design of Spread-Spectrum Communication System Based on FPGA1 Yixin Yan, Xiaolei Liu, 2* Xiaobing Zhang1 College Measurement Control Technology and Communication Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, P. R. China 1 E-mail: yixinyanedu@yeah.net
Received: 15 April 2013 /Accepted: 19 July 2013 /Published: 30 July 2013 |
Abstract: Spread spectrum communication technology, compared with the conventional communication technology, has many characteristics, such as a low interception rate, strong anti-noise performance, noise immunity, information hiding and multiple access communication. Widely used in military communication and civil communication at present, it is the core technology in the third generation mobile communication standards and has become one of the three high-tech communication transmission modes to enter the information age. The communication system of direct sequence spread spectrum (DSSS) is most common in the spread spectrum communication technology, and this type of system was studied in this research. FPGA is one of hot research topics on hardware design. It has been widely used in the algorithm implementation and product prototype verification due to its rich logical unit, high integration, flexible configuration and many other advantages. Design and implementation on digital communication system with a more complex function have become reality on the hardware platform of FPGA with the considerable development of modern microelectronics especially in recent years. The research studied the various parts of key technologies, introduced the various algorithms of the most critical synchronization technologies (including pseudo-code acquisition, pseudo-code tracking, and carrier synchronization) in system in detail and gave their simulation results by establishing a complete simulation system for Direct Sequence Spread Spectrum.
Keywords: Spread spectrum, PN code, FPGA.
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