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Research on Modulation Technologies in UWB-PCSS Communication System

Author: YeChangMing
Tutor: GuoLiLi
School: Harbin Engineering University
Course: Communication and Information System
Keywords: Ultra-Wideband Parallel Combinatory Spread Spectrum Multi-band pulse position modulation Ary Orthogonal Keying modulation
CLC: TN925
Type: Master's thesis
Year: 2010
Downloads: 36
Quote: 0
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Abstract


Very narrow pulses of the ultra wideband (Ultra Wide Band, UWB) communication is outside the narrow band communication and broadband communication , a new communications technology, having a large capacity communication , the density of the radiated power is low , the resistance to multipath interference and electromagnetic interference secrecy good simple structure . Parallel Combinatory Spread Spectrum Communication System (Parallel Combinatory Spread Spectrum, PCSS) with anti-jamming and high bandwidth efficiency and high capacity of information transmission and anti - detection ability . The efficiency and security of the communication system are the two important technical indicators to measure the performance of modern communication systems ; parallel combination of spread spectrum communication technology and ultra-wideband communications technology because efficient communication ability and confidential communications performance and become two of the field research focus. In this paper, on the basis of analysis of the parallel combination of spread spectrum communications and ultra-wideband communication system technical features technical advantages of the combination of the two means of communication , a parallel combination of spread spectrum - based ultra-wideband communication program ; theory and implementation technically address the key issues , the new communications program at the same time efficient and secure communication performance . The basis of the argument is based on the parallel combination of spread spectrum technology improved ultra-wideband wireless communication can be realized , a unique system for the new program structure and mechanism of modulation of the focus on the program , conduct in-depth research based parallel the combination of spread spectrum ultra-wideband communication system communication model , proposed ary pulse position modulation and multi-band orthogonal keying modulation UWB communication system based on parallel combinatory spread spectrum , and two simulation modulation scheme feasibility of applying the new communication system .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications
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