Polarisation diversity in high frequency radio datasystems

Serinken, N.; Jorgenson, M. B.; Moreland, K.W.; Chow, Shiao Huey; Willink, T.J.

doi:10.1049/el:19961171

Cited by 12 publications

(6 citation statements)

References 3 publications

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“…First, in Serinken et al [] the authors quantified the potential advantage of polarization diversity applied to a 2.4 kbps HF data system. They reduced the BER up to 3 orders of magnitude by using two orthogonal antennas at the receiver.…”

Section: Polarization Diversity In Hf Literaturementioning

confidence: 99%

Polarization diversity in a long‐haul transequatorial HF link from Antarctica to Spain

2017

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This paper describes a set of experiments which examine the feasibility of applying polarization diversity to a 12,760 km ionospheric link from Livingston Island (62.6°S, 60.4°W), South Shetlands, to Cambrils (41.0°N, 1.0°E), Spain. A transmitting monopole and both a monopole and a dipole (inverted‐V) at reception are the antennas used in this measurement campaign. Receiving antennas are orthogonal polarized to check whether wave polarization rotation causes differences between simultaneous signals. The results gathered in the paper indicate that there is a marked difference between simultaneous signals at vertical and horizontal polarized antennas, which depends on the hour of the day and the signal frequency. In this low‐throughput HF data link, polarization diversity could be used to increase SNR and performance through smart combination of receiving signals, due to the low cross‐correlation factor between them.

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Section: Polarization Diversity In Hf Literaturementioning

confidence: 99%

Polarization diversity in a long‐haul transequatorial HF link from Antarctica to Spain

2017

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“…One method is to use a multiple-input multiple-output (MIMO) system operating on multipath radio channels in order to increase the channel capacity. To further improve the channel capacity and hence the performance, a dual-polarized antenna can also be used for reception and transmission [1][2][3] because such an antenna can reduce Rayleigh fading [4]. In the past decade, many dual-polarized antenna designs have used the flat-grounded planes described in the literature [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…To further improve the channel capacity and hence the performance, a dual-polarized antenna can also be used for reception and transmission [1][2][3] because such an antenna can reduce Rayleigh fading [4]. In the past decade, many dual-polarized antenna designs have used the flat-grounded planes described in the literature [2][3][4][5][6][7][8]. In fact, if a vertical cylindrical ground is used, the services of MIMO system can be enhanced [9], since omnidirectional radiation will be provided in the azimuth (horizontal) plane by mounting several antennas along the circumference of the cylinder [10 -13].…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, a design guideline is provided, which includes experimental results and simulation results obtained using the commercial software IE3D [14]. Furthermore, it is found that there was no direct display of radiation pattern at the vertical and horizontal planes of Ϯ45°polarizations either in IE3D or the literature [2][3][4][5][6][7][8]. Therefore, based on the definition in [15], a simple transformation is performed to obtain the simulated radiation patterns of the Ϯ45°polarizations at the two principal planes, which are compared with the results from experiments.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, the midway isolator reduces the effect of ASE self-saturation in the amplifier system [1]. This configuration can also improve the sensitivity of the EDFA to the external reflections caused by the imperfection of splicing and other optical components [2,3]. A co-pumped scheme is deployed in the first stage and a counter-pumped scheme is used in the second stage.…”

Section: Introductionmentioning

confidence: 99%

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Wideband dual‐polarized antenna array on finite conducting cylinder

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A novel miniature antenna design capable of both surface-tosurface and surface-to-orbiter communications has been presented in this paper. The benefit of this antenna is that it provides comparable performance of two separate antennas (that is, a dipole and a microstrip patch) in a single package and at a fraction of the size. The relatively low gain (ϳ1.5 dBi) and small bandwidth (ϳ10 MHz) at the S-band makes this antenna suitable for low-data-rate, proximity communications, while the higher gain and wider bandwidth at the Ku-band makes it ideal for relaying collected data or communications through satellite links over longer distances. This work presents a viable candidate antenna design for lunar-surface robotic communications applications. ACKNOWLEDGMENTSThe authors wish to thank Kevin Lambert for his insightful recommendations regarding the construction of this antenna design. REFERENCES

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