【摘要】 针对鱼雷主动自导同时多波束发射时，指向不同方向发射信号叠加导致干涉相消，使得各通道间发射信号能量一致性较低、视场区域能量覆盖均匀性较差等问题，本文研究了一种基于伪随机编码的鱼雷自导同时多波束信号产生方法。通过减小指向不同方向发射信号间的相关性，降低同时多波束发射信号叠加时的干涉效应，从而提升发射通道能量一致性。以自导视场内能量均匀性为标准，通过计算机仿真验证了其性能。仿真结果表明，采用本文方法，各通道间发射信号能量一致性和视场区域能量覆盖均匀性得到了明显改善，改善程度与码元数密切相关。更多还原

【Abstract】 Caused by the destructive interference while the multiple beams stacked, in the torpedo active homing system, the energy consistency between channels is large and the uniformity of energy coverage in the field of view is poor.A method of simultaneous multi-beam generation based on pseudo-random coding(PN) is studied.The correlation between transmitted signals pointing to different directions is decreased.The interference effect due to the superposition of multi-beam transmitted signals at the same time is reduced.The energy uniformity in the homing field of view is used as the standard.The performance of the method proposed is verified by computer simulation.The results show that the energy consistency of transmitted signals between channels is significantly improved by the method proposed, and the improvement degree is closely related to the number of symbols.更多还原