本文選題：發(fā)射數(shù)字波束形成 + 多波束形成�。� 參考：《西安電子科技大學》2014年碩士論文

【摘要】：發(fā)射數(shù)字波束形成系統(tǒng)采用數(shù)字技術對陣列雷達信號進行幅相加權以形成高質(zhì)量的發(fā)射波束，具有波束控制精確便捷、系統(tǒng)集成度高、抗干擾能力強及可維護性高等突出優(yōu)點，因而在現(xiàn)代陣列雷達中得到快速發(fā)展和廣泛應用。 本文基于相控陣天線原理建立了發(fā)射陣列信號模型，對均勻線陣模型及波束形成進行了仿真分析，介紹了發(fā)射數(shù)字多波束形成理論，重點討論了發(fā)射數(shù)字波束形成系統(tǒng)各部分的設計，包括數(shù)字T/R組件、直接數(shù)字頻率合成、雷達波形產(chǎn)生及波束控制系統(tǒng)，詳細闡述了發(fā)射數(shù)字波束形成系統(tǒng)的工程實現(xiàn)，包括波束控制系統(tǒng)和波形產(chǎn)生模塊的軟硬件設計及測試，深入探討了陣列誤差對發(fā)射數(shù)字波束形成系統(tǒng)的影響并根據(jù)發(fā)射DBF校正原理設計了校正方案，，完成了工程實現(xiàn)及測試，達到了課題研究預期。論文研究并設計實現(xiàn)的發(fā)射DBF系統(tǒng)可實現(xiàn)低副瓣發(fā)射波束的快速掃描和靈活控制，具有很高的工程實用價值和應用前景。
[Abstract]:Transmitting digital beamforming system uses digital technology to weigh the amplitude and phase of array radar signal to form high-quality transmitting beam, which has the outstanding advantages of accurate and convenient beam control, high system integration, strong anti-jamming ability and high maintainability. Therefore, it has been rapidly developed and widely used in modern array radar. In this paper, based on the principle of phased array antenna, the signal model of transmitting array is established, the uniform linear array model and beamforming are simulated and analyzed, and the theory of transmitting digital multi-beam forming is introduced. The design of various parts of transmitting digital beamforming system, including digital T / R module, direct digital frequency synthesis, radar waveform generation and beam control system, is discussed in detail. The engineering implementation of transmitting digital beamforming system is described in detail. The software and hardware design and test of beam control system and waveform generation module are included. The effect of array error on transmitting digital beamforming system is discussed in depth. The correction scheme is designed according to the principle of transmit DBF correction, and the engineering realization and test are completed. Meet the project research expectations. The research and design of the launch DBF system can realize the fast scanning and flexible control of the low sidelobe transmitting beam, which has high engineering practical value and application prospect.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN958.92

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