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Uncertainties in Bistatic RCS Measurements

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Title Uncertainties in Bistatic RCS Measurements
 
Creator Singh, Rakesh Kumar
Jahagirdhar, D R
Sarma, N V S N
 
Subject Antenna
Compact antenna test ranges
Far field
Plane wave
Radar
 
Description 1233-1239
Radar Cross Section (RCS) is a far field parameter and limited test range length produces error in its measurements. RCS
measured with co-located Tx and Rx antennas is termed as monostatic RCS and with spatially separated Tx and Rx antennas
as Bistatic RCS (BRCS). Interest in BRCS measurements has grown due to increase in use of multi-static Radars for
detecting low-observable targets. In literature BRCS measurement techniques explored are either horn antenna based far
field setups or Compact Antenna Test Range (CATR) based setups. All the techniques have inherent limitations and errors,
which need to be assessed as the information generated plays a decisive role in the design of military platforms. In the
present paper, the errors in each measurement technique are obtained through extensive numerical computation and
measurements on various canonical as well as complex shapes. The results highlight the effect of the phase curvature in
either or both, Tx, and Rx paths, affect the measurement accuracies, thereby limiting the target size and highest frequency of
operation of present techniques.
 
Date 2022-11-24T05:41:12Z
2022-11-24T05:41:12Z
2022-11
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/60910
https://doi.org/10.56042/jsir.v81i11.65612
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source JSIR Vol.81(11) [Nov 2022]