雙基MIMO雷達(dá)波形與探測跟蹤能力仿真研究
[Abstract]:Bistatic MIMO radar is a kind of MIMO radar with separate transceiver stations. It not only combines the characteristics of bistatic radar and MIMO radar, but also has the advantages of strong anti-jamming ability, high target measurement, high positioning accuracy, good RF stealth performance, etc. At the same time, it also makes up for the deficiency of both. Therefore, how to use the advantages of bistatic MIMO radar to achieve accurate target tracking and positioning is of great value. The application of different orthogonal waveforms makes bistatic MIMO radar have different performance characteristics. To study the fuzzy characteristics of orthogonal waveform and analyze its influence on radar parameter measurement is of great significance for the design of bistatic MIMO radar system. In this paper, the orthogonal waveform characteristics of bistatic MIMO radar and its application characteristics are studied. The detection and tracking ability and target tracking performance of bistatic MIMO radar are analyzed, and the corresponding simulation research is carried out. The main contents are as follows: 1. According to the geometric configuration of bistatic MIMO radar, the signal echo models of stationary and moving targets are derived, and the definitions and principles of three kinds of orthogonal signals are introduced respectively. The definition of ambiguity function of bistatic MIMO radar is given. With the help of the definition of blur function of bistatic MIMO radar, the ambiguity functions of step frequency division linear frequency modulation signal, orthogonal phase coding and linear frequency modulation mixed signal are derived respectively. The advantages of orthogonal phase code-LFM mixed signal in target tracking and anti-interception are analyzed. The basic theory and algorithm of bistatic MIMO target tracking and location are introduced. Based on this, a bistatic MIMO radar simulation system is built, and the main modules of the simulation system are described. The tracking performance of MIMO radar and phased array radar is compared and analyzed under the same conditions, and the simulation results show that pulse accumulation can reduce the positioning error of the system. The target tracking capability of the three orthogonal signals mentioned above is simulated and analyzed. The results show that the tracking accuracy of the quadrature phase code-linear frequency modulation mixed signal is the highest.
【學(xué)位授予單位】:電子科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TN958
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