单比特接收机自适应波束形成、同步算法研究及工程实现-信号与信息处理专业论文.docx

Abstract ii Abstract Synchronization plays an important role in communication systems. It is the precondition for the processing of information transportations. The performance of synchronization will directly influence the performance of communication systems. As a new type of wide-band receiver, mono-bit digital receiver has wide bandwidth, high sensitivity, real-time processing capability, and many other advantages, thus it will undoubtedly have a good application prospect in communication systems. Based on the mechanism of the mono-bit receiver, a realization method of suppressing interference and extracting synchronization information from receiving data under the strong interference is presented in this dissertation. By using an adaptive anti-jamming algorithm, the interference can be effectively suppressed, and then synchronization is feasible. The performance of improving synchronization is analyzed through some simulations .Finally the simulation results show that through adaptive anti-jamming processing, antenna array can suppress the interference by a null in the direction of strong interference in order to ensure that the synchronization of information can be correctly extracted. Finally, with some type ship-borne smart antenna system, based on FPGA and DSP hardware platform, adaptive beamforming and synchronization algorithm are realized in the dissertation. The real-on-pot data result demonstrate the information can be obtained after the strong interference is rejected. Keyword: Mono-bit Receiver Adaptive Beamforming Barker Code Synchronization 摘 要 i 西安电子科技大学 学位论文独创性（或创新性）声明 秉承学校严谨的学风和优良的科学道德，本人声明所呈交的论文是我个人在导师指导下 进行的研究工作及取得的研究成果。尽我所知，除了文中特别加以标注和致谢中所罗列的内 容以外，论文中不包含其他人已经发表或撰写过的研究成果；也不包含为获得西安电子科技 大学或其它教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任 何贡献均已在论文中做了明确的说明并表示了谢意。 申请学位论文与资料若有不实之处，本人承担一切的法律责任。 本人签名： 日期 西安电子科技大学 关于论文使用授权的说明 本人完全了解西安电子科技大学有关保留和使用学位论文的规定，即：研究生在校攻读 学位期间论文工作的知识产权单位属西安电子科技大学。学校有权保留送交论文的复印件， 允许查阅和借阅论文；学校可以公布论文的全部或部分内容，可以允许采用影印、缩印或其 它复制手段保存论文。同时本人