Radar cross section measurements
Radar cross section measurements
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DOI：
10.1109/proc.1987.13757
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发表时间：
1986-09
影响因子：
20.6
通讯作者：
R. Dybdal
中科院分区：
文献类型：
--
作者：
R. Dybdal
雷达散射截面测量技术的发展与雷达技术的进步密切相关。最近雷达技术和处理技术的加速已经产生了对雷达截面测量感兴趣的相应加速。从历史上看，早期的雷达截面测量是为了确定雷达系统的探测范围，这是一个仍然存在的基本目标。后来的测量，再加上分析技术和计算机代码，进行了扩展我们的雷达散射过程的理解。目前，宽带电子学、信号处理技术和数字技术的发展，导致了雷达截面测量计划的出现，这些计划旨在探索工作波形和处理、目标识别、杂波中目标的可探测性和雷达散射控制的性能。综述了雷达散射截面测量的基本原理。测量设施，包括目前的研究活动，紧凑的范围内的技术，然后描述。测量雷达受益于宽带电子和数字处理能力;特别是傅立叶变换技术，提供了关于目标散射的额外信息，并通过将目标与测量设施的雷达回波隔离来提高测量精度。频率覆盖范围也扩大到包括毫米波频率。在任何测量程序中，可测量的精度都很重要，并讨论了限制雷达散射截面测量精度的因素。
The progress in radar cross section measurements is strongly related to the progress in radar technology. The recent acceleration in radar technology and processing techniques has generated a corresponding acceleration in interest for radar cross section measurements. Historically, early radar cross section measurements were performed to determine the detection range of radar systems, a fundamental objective that still exists. Later measurements, coupled with analytic techniques and computer codes, were performed to extend our understanding of the radar scattering process. At the present time, the availability of broad-band electronics, signal processing techniques, and digital technology results in radar cross section measurement programs which are directed toward exploring the performance of operational waveforms and processing, target discrimination, target detectability in clutter, and radar scattering control. The fundamentals of radar cross section measurements are reviewed. Measurement facilities, including the present research activities on compact range techniques, are then described. Instrumentation radars have benefited from both wide-bandwidth electronics and digital processing capabilities; Fourier transform techniques, in particular, provide both additional information on target scattering, and increase measurement accuracy by isolating the target from radar returns from the measurement facility. The frequency coverage has also extended to include millimeter-wave frequencies. Achievable accuracy is important in any measurement program, and those factors that limit the accuracy of radar cross section measurements are discussed.