NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Effective Radar Cross Section in Close-Range Joint Communication and Sensing Applications
Published
Author(s)
Steve Blandino, Jelena Senic, Neeraj Varshney, Jihoon Bang, Jack Chuang, Samuel Berweger, Jian Wang, Camillo Gentile, Nada Golmie
Abstract
Radar Cross Section (RCS) is traditionally mea- sured under far-field conditions where targets are fully illumi- nated by the antenna beam. However, in close-range scenarios, such as those encountered in Joint Communication and Sensing (JCAS) systems, the assumptions of far-field RCS modeling break down due to partial target illumination, leading to discrepancies between the intrinsic RCS, the target's inherent scattering prop- erty, and the effective RCS, which accounts for the limitations of the antenna field of view. This paper develops a methodology and conducts a measurement campaign to establish the relationship between extrinsic RCS and effective RCS. Measurements are con- ducted with human and automated ground vehicle (AGV) targets to demonstrate the relationship between effective RCS and dis- tance, highlighting the transition from partial to full illumination. By accounting for the area defined by the beamwidth and the target retrieved from geometrical modeling, the intrinsic RCS is recovered. The results enable accurate prediction of effective RCS using intrinsic RCS values and vice versa, facilitating the design and analysis of sensing systems in close-range applications.
Conference Dates
July 13-18, 2025
Conference Location
Ottawa, CA
Conference Title
2025 IEEE International Symposium on Antennas & Propagation and North American Radio Science Meeting
Blandino, S.
, Senic, J.
, Varshney, N.
, Bang, J.
, Chuang, J.
, Berweger, S.
, Wang, J.
, Gentile, C.
and Golmie, N.
(2025),
Effective Radar Cross Section in Close-Range Joint Communication and Sensing Applications, 2025 IEEE International Symposium on Antennas & Propagation and North American Radio Science Meeting, Ottawa, CA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=959347
(Accessed October 7, 2025)