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- Aldhubaib, Faisal, et al.
(författare)
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A Radar Target Signature based on Resonance and dual Polarization Features
- 2008
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Ingår i: 2008 Asia Pacific Microwave Conference, APMC 2008; Hong Kong; China; 16 December 2008 through 20 December 2008. - 9781424426423 ; , s. 1-4
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Konferensbidrag (refereegranskat)abstract
- A physically based radar target scattering signature is derived from observable data using a frequency domain scattering model that incorporates the backscattered radar target polarization response at the target natural resonance frequencies (NRF). Two rotationally symmetric targets of simple but similar characteristic geometry are used to demonstrate the theoretical feasibility and the ability to distinguish the two similar targets by this proposed signature.
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- Lui, Hoi-Shun, 1980, et al.
(författare)
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A Note on the Mutual-Coupling Problems in Transmitting and Receiving Antenna Arrays
- 2009
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Ingår i: IEEE Antennas and Propagation Magazine. - 1045-9243. ; 51:5, s. 171-176
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Tidskriftsartikel (refereegranskat)abstract
- In antenna arrays, mutual coupling between antenna elements is well known as an undesired effect, which degrades the performance of array signal-processing algorithms. The compensation of such an undesired effect has been a popular research topic throughout the years. Various approaches for mutual-coupling compensation have been developed, and they can easily be found in the open literature. In general, the mutual-coupling problems for a transmitting and receiving array are different, even if the physical geometry of the array remains unchanged. However, it seems that antenna engineers are not well aware of such differences in the analysis of receiving antenna arrays. In this note, the mutual-coupling problems in transmitting and receiving antenna arrays are revisited. The differences between the mutual coupling and mutual impedances for transmitting and receiving antenna arrays are explained. It is concluded that the mutual-coupling problems of transmitting and receiving arrays are in general different, and hence different mutual impedances should be used for mutual-coupling analysis and compensation.
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