相互耦合对线性阵列超分辨DF的影响

[Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1992-03-23 DOI:10.1109/ICASSP.1992.226521

C. Roller, W. Wasylkiwskyj

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引用次数: 33

摘要

传统的窄带阵列信号处理模型通过阵列阻抗矩阵的封闭表达式来扩展相互耦合的影响。互耦矩阵像一组窄带波束形成器一样影响入射信号;本文对这种解释进行了探讨。研究了互耦合条件下阵列的超分辨测向性能。仿真结果检验了天线终端阻抗失配对DF性能的影响，使用了典型移动蜂窝无线电环境场景的参数。结果表明，通过不匹配阵列终端可以提高阵列的DF性能，从而减少相互耦合的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effects of mutual coupling on super-resolution DF in linear arrays

The traditional narrowband array signal processing model is expanded by incorporating the effects of mutual coupling via a closed-form expression for the array impedance matrix. The mutual coupling matrix affects the incident signal like a set of narrowband beamformers; this interpretation is explored. The array's super-resolution direction finding (SRDF) behavior/performance in the presence of mutual coupling is explored. Simulation results examine the effects of mismatch in antenna termination impedance upon DF performance, using parameters from a typical mobile cellular radio environment scenario. The results indicate that array DF performance can be improved by mismatching the array terminations, thus reducing the effect of mutual coupling.<>

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[Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing

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