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Abstract <p>At present, most measuring systems allow obtaining monostatic radar cross section (RCS), but the ability to obtain bistatic RCS is very important from a practical point of view. Therefore, it is necessary to modernise existing compact ranges with the aim of measuring bistatic RCS. In practice, this is often achieved using a near-field scanner with the subsequent computation of the far-field and the corresponding bistatic RCS. In this paper, a method is proposed, based on the principles of the discrete sources method for computing the RCS from near-field values obtained through scanning on a plane or a portion of a cylindrical surface. The proposed method is validated through numerical experimentation. A comparison is performed between the results obtained using the presented method and those obtained via the traditional near-field to far-field transformation technique. It is demonstrated that the use of discrete sources in the considered configurations allows for more accurate computation of the target bistatic RCS.</p>

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Method for Obtaining a Bistatic RCS Diagram of a Body Using Near-Field Data on a Plane or Cylinder Using Discrete Sources

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • N. P. Balabukha,
  • D. A. Konyaev,
  • N. E. Shapkina

摘要

Abstract

At present, most measuring systems allow obtaining monostatic radar cross section (RCS), but the ability to obtain bistatic RCS is very important from a practical point of view. Therefore, it is necessary to modernise existing compact ranges with the aim of measuring bistatic RCS. In practice, this is often achieved using a near-field scanner with the subsequent computation of the far-field and the corresponding bistatic RCS. In this paper, a method is proposed, based on the principles of the discrete sources method for computing the RCS from near-field values obtained through scanning on a plane or a portion of a cylindrical surface. The proposed method is validated through numerical experimentation. A comparison is performed between the results obtained using the presented method and those obtained via the traditional near-field to far-field transformation technique. It is demonstrated that the use of discrete sources in the considered configurations allows for more accurate computation of the target bistatic RCS.