| Bistatic radar system is very important in modern electronic and informational warfare since it has the ability of anti-ARM, anti-jamming, anti-Low Altitude Infall, and anti-stealth. Also it can effectively solve the main "four-threat" of single radar system. However, there's some problems must to be resolved, such as time synchronization, space and phase synchronization, signal processing, and clutter constricting, etc.This thesis concentrates on the time synchronization and phase synchronization of bistatic radar system. This field is very important because the synchronization degree will influence the operation of the radar system heavily. In this paper, the fundamental theory of bistatic radar system and the problems it faced is introduced. At the same time, the transmission technologies of time and frequency signal are discussed and the advantages and disadvantages of each technology is analyzed too. Furthermore, a new time and phase synchronization scheme using a globe positioning system of a satellite (GPS) is presented. It is expected that this scheme can realize the time synchronization, frequency synchronization and phase synchronization of the bistatic radar system effectively.This dissertation consists of 5 chapters. The first part reviews the development of radar. The theoretical basis of bistatic radar system is introduced in second part. Chapter 3 discusses the time base and frequency base, as well as the measure methods of time and frequency. The traditional transmission technology of time and frequency signal is analyzed in chapter 4. The error of each technology and revising of the error also are topics of focus. In the last section, the author presents a technical scheme of time and phase synchronization based on GPS. Furthermore, the maintenance of synchronization is discussed. |
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