Radar cross section measurements

Dybdal, R.B.

doi:10.1109/proc.1987.13757

Cited by 90 publications

(23 citation statements)

References 39 publications

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“…Scale measurements consist of fabricating accurate representations of the object under investigation and determining RCS using high frequency emitters [18] [19] . This method allows for very accurate determination of scattering centers.…”

Section: Rcs Determination Thechniquesmentioning

confidence: 99%

Warship radar cross section determination and reduction, and hindrances in optimizing radar cross section reduction on warships

Khan

Duan

2011

SPIE Proceedings

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From the begining of military warfare, it has always been extremely important to know the enemy position and hide oneself to capitalize on elements of surprise and initiative, and same is true for naval warfare. Radar is the primary instrument used for detecting enemy platforms today. Radar detects a target by clocking time taken by a known pulse of electromagnetic energy to get to the target and return. Radar cross section (RCS) is the measure of reflective strength of a target. Reducing the RCS of a platform implies its late detection, used to capitalize on surprise and initiative. RCS is also important for survivability evaluation since most modern weapons use installed radars during final engagement phase. As a result, RCS of a warship has transformed into a very important design factor for stealth to achieve surprise, initiative and survivability. Thus accurate RCS determination and RCS reduction are matters of extreme importance.The purpose of this study is to provide an understanding RCS reduction and RCS determination methods used on warships today. In doing so, this study will discuss importance of RCS, radar fundamentals and RCS basics, RCS reduction and RCS determination methods. It will also present hindrances in optimizing RCSR on warships, impact of these hindrances on navies around the world, and comment on possible remedies to these hindrances.

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Section: Rcs Determination Thechniquesmentioning

confidence: 99%

Warship radar cross section determination and reduction, and hindrances in optimizing radar cross section reduction on warships

Khan

Duan

2011

SPIE Proceedings

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“…The main purpose of RCS measurement is to collect radar target scattering data at various viewing angles [2][3][4] . The data should correspond to far field where the target is located far enough from the radar so that the incident wave is an acceptably plane wave 5 In CW RCS measurement the CW signal at the desired frequency is recorded by a tuned narrow band receiver.…”

Section: Rcs Measurement Principlementioning

confidence: 99%

Radar Cross-section Measurement Techniques

Borkar¹,

Ghosh²,

Singh³

et al. 2010

DSJ

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Radar cross-section (RCS) is an important study parameter for defence applications specially dealing with airborne weapon system. The RCS parameter guides the detection range for a target and is therefore studied to understand the effectiveness of a weapon system. It is not only important to understand the RCS characteristics of a target but also to look into the diagnostic mode of study where factors contributing to a particular RCS values are studied. This further opens up subject like RCS suppression and stealth. The paper discusses the RCS principle, control, and need of measurements. Classification of RCS in terms of popular usage is explained with detailed theory of RF imaging and inverse synthetic aperture radar (ISAR). The various types of RCS measurement ranges are explained with brief discussion on outdoor RCS measurement range. The RCS calibration plays a critical role in referencing the measurement to absolute values and has been described.The RCS facility at Reseach Centre Imarat, Hyderabad, is explained with some details of different activities that are carried out including RAM evaluation, scale model testing, and diagnostic imaging.

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“…Since the introduction of radar on the battlefields of World War II, the prediction and reduction of aircraft radar cross section (RCS) has received much attention [1][2][3][4][5][6][7]. As measuring equipment, computer power, and algorithms continue to be improved, grow, and evolve, the accuracy of prediction methods increases.…”

Section: Introductionmentioning

confidence: 99%

Reduction of RCS Samples Using the Cubed Sphere Sampling Scheme

Persson¹,

Norsell²

2016

PIER M

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Abstract-An alternative to the traditional method of sampling radar cross section data from measurements or electromagnetic code is presented and evaluated. The Cubed Sphere sampling scheme solves the problem of oversampling at high and low elevation angles and at equal equatorial resolution the scheme can reduce the number of samples required by approximately 25%. The analysis is made of an aircraft model with a monostatic radar cross section at C-band and a bistatic radar cross section at VHF-band, using Physical Optics and the Multilevel Fast Multipole Method, respectively. It was found that for the monostatic radar cross section, the Cubed Sphere sampling scheme required approximately 12% fewer samples compared to that required for traditional sampling while maintaining the same interpolation accuracy over the entire domain. For the bistatic data, it was possible to reduce the number of samples by approximately 35% for high sampling resolutions. Using spline interpolation the number of samples required could be reduced even further.

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Radar cross section measurements

Cited by 90 publications

References 39 publications

Warship radar cross section determination and reduction, and hindrances in optimizing radar cross section reduction on warships

Warship radar cross section determination and reduction, and hindrances in optimizing radar cross section reduction on warships

Radar Cross-section Measurement Techniques

Reduction of RCS Samples Using the Cubed Sphere Sampling Scheme

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