REFLECTION SUPPRESSION TO IMPROVE ANECHOIC CHAMBER PERFORMANCE
REFLECTION SUPPRESSION TO IMPROVE ANECHOIC CHAMBER PERFORMANCE
复制标题
反射抑制可提高电波暗室性能
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Nearfield
中科院分区：
文献类型：
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作者：
G. Hindman;Allen C. Newell;Nearfield
消声室中的反射会限制性能，并且通常会主导所有其他误差源。本文将展示NSI开发的一种新技术的结果，以抑制反射和提高性能的消声室。该技术被称为数学吸收体反射抑制（MARS），是一种后处理技术，涉及对测量数据的分析和特殊的滤波过程，以抑制不期望的散射信号。该技术是一种通用技术，可应用于任何球面范围。它也已被应用于扩展微波吸收器的有用频率范围内的球形近场系统。本文将显示典型的改进方向图的性能，并将显示验证的MARS技术使用的数据测量的天线在一个传统的电波暗室。
Reflections in anechoic chambers can limit the performance and can often dominate all other error sources. This paper will show the results of a new technique developed by NSI to suppress reflections and improve performance in anechoic chambers. The technique, named Mathematical Absorber Reflection Suppression (MARS), is a post-processing technique that involves analysis of the measured data and a special filtering process to suppress the undesirable scattered signals. The technique is a general technique that can be applied to any spherical range. It has also been applied to extend the useful frequency range of microwave absorber in a spherical near-field system. The paper will show typical improvements in pattern performance, and will show validation of the MARS technique using data measured on an antenna in a conventional anechoic chamber.