串声消除系统可用于三维音频双耳扬声器重放中产生逼真空间声像，其在航空模拟、虚拟现实、娱乐多媒体等领域都有重要应用价值。实际应用中串声消除系统的设计需要首先分析其鲁棒性，选取较优的扬声器与听者布置。现有关于串声消除系统鲁棒性分析都假设扬声器位于听者两端成对称分布，同时未考虑实际扬声器指向性的影响。本项目拟对现有串声消除系统鲁棒性分析进一步扩展，首先研究分析自由场下扬声器与听者任意布置串声消除系统的一般鲁棒性规律，然后引入扬声器指向性建模，在此基础上分析扬声器指向性对串声消除系统鲁棒性的影响。本项目研究将为阐明串声消除系统鲁棒性问题奠定更加坚实的理论基础，同时也为三维音频应用到国民经济和国防建设中串声消除系统设计提供指导。

Crosstalk cancellation system yields high-spatial-fidelity reproduction of binaural audio through loudspeakers allowing a listener to perceive an accurate 3D sound image, which finds many applications in various fields of aviation simulation, virtual reality, entertainment multimedia, etc. In practice, the design of crosstalk cancellation system needs to analyze its robustness in advance, and thus select the optimal loudspeaker and listener arrangement. The existing robust analysis of the crosstalk cancellation system usually assumes that the loudspeakers are located symmetrically against the listener, and also without considering the actual loudspeaker directivity. This project intends to further expand the existing robustness analysis of the crosstalk cancellation system. Firstly, under the free field, the general robustness of the crosstalk cancellation system with loudspeakers and listener arranged arbitrarily is extensively studied and analyzed. Then, through modelling the loudspeaker directivity, the impact of loudspeaker directivity on the robustness of the crosstalk cancellation system is investigated. This study will lay a more solid theoretical foundation for clarifying the robustness of the crosstalk cancellation system, and provide a guidance for the practical design of crosstalk cancellation system across a wide range of 3D audio applications in national economic and defense construction.