Broadcast analysis and prediction in the HF band

Tanyer, Suleyman Gokhun; Erol, Cemil B.

doi:10.1109/11.713075

Cited by 8 publications

(4 citation statements)

References 4 publications

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“…Most available long term HF propagation models, e.g., VOACAP, ICEPAC, and the International Telecommunication Union (ITU) Recommendation 533 (REC533) propagation model, use monthly median values of f o F2 and M(3000)F2 obtained from worldwide maps established using historical data at various ionosonde sites around the world. The commonly used world maps include the International Union of Radio Science (URSI) and International Radio Consultative Committee (CCIR) maps [ Tanyer and Erol , ]. The CCIR maps, used in VOACAP and ICEPAC, are based on monthly median values obtained by the worldwide network of ionosondes from about 150 stations during 1954–1958.…”

Section: Prediction Modelsmentioning

confidence: 99%

Comparison of observed and predicted MUF(3000)F2 in the polar cap region

et al. 2015

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The maximum usable frequency for a 3000 km range circuit (MUF(3000)F2), computed from ionosonde measurements at Resolute (74.75 Predictions and observations show diurnal and seasonal variations; however, the VOACAP and ICEPAC models fail to reproduce the diurnal variation trend observed in the measurements during the summer period. The performance of these models has been statistically analysed: REC533 gives a better performance in winter and equinox months, while VOACAP has a better performance for both equinox and summer months. ICEPAC shows poor performance during low solar activity.

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Section: Prediction Modelsmentioning

confidence: 99%

Comparison of observed and predicted MUF(3000)F2 in the polar cap region

et al. 2015

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“…HF communication systems are affected by factors such as communication location, communication time, space atmospheric data, and weather etc. [1], while the communication frequency prediction results vary greatly.…”

Section: Introductionmentioning

confidence: 99%

Method for the prediction of the frequency of airborne high-frequency circuits at high-altitude and long-distance communication

Xia

2024

Third International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2024)

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During the test flight of civil aircraft, the prediction method recommended by ITU-R P.533 was used to predict the frequency of the high frequency(HF) system at the situation of the high-altitude and long-distance communication. There were many cases which the communication effect was lower than the design expectations. Through comparative analysis of test flight scenarios and scenarios recommended by ITU-R P.533, it is found that the flight altitude of the aircraft is a key factor affecting the accuracy of frequency prediction, and the communication distance will also exacerbate the impact of flight altitude. This paper establishes the test flight model of the airborne high frequency system to obtain the correction amount of flight altitude and communication distance for the frequency prediction. It proves the correctness and effectiveness of the method discussed in this paper through multi-scenario test flights.

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“…Many software methods used to predict ionosphere variables which classified in groups such that Statistical, empirical and numerical software methods. The most widely used statistical method is Voice of America and Ionospheric Communication Enhanced Profile Analysis and Circuit Prediction Program (VOACAP) [5,6,7,8,9,10,11]. The novelty of this paper is to use real data variables such as fof2 (the critical frequency of the F2 layer of the ionosphere) and h'f2 (virtual height of F2 layer) supplemented by Nicosia Ionosonde station (35.1856° N, 33.3823° E) 1000 km away from Baghdad and using sets of empirical equations implemented by MATLAB to generate the values for a single hope information parameters like MUF (Maximum Usable Frequency),FOT (Operating Frequency) and d (the radio range distance) then compare the theoretical results by using VOACAP to predict MUF and coverage area in which Baghdad station is the transmitter.…”

Section: Introductionmentioning

confidence: 99%

Radio Contact Establishment Out of Iraqi Boarder using Nicosia Ionosonde Real data

Ali¹

2018

IJEEE

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Although the advanced technology in satellites and optical fiber communication systems exists now a day, but the researches in HF sky wave propagation for Mesopotamia (Iraq) area is suffered from shortage. In this paper, the novelty is that the communication path from Baghdad to any distance out of Iraqi border had been predicted, calculated and measured experimentally by using real data (Ionogram) supplemented by Nicosia Ionosound station 1000Km from Baghdad and a radio station model TS-130SE as a transmitter. The Predicted results generated by using MATLAB and NTIA/ITS software package like VOACAP. Radio communication using TS-130SE with 36 countries had been done experimentally. A comparison between the theoretical and experimental results was done. The experimental results were in the range of the predicated results which emphasis proposed method Presented in this paper.

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Broadcast analysis and prediction in the HF band

Cited by 8 publications

References 4 publications

Comparison of observed and predicted MUF(3000)F2 in the polar cap region

Comparison of observed and predicted MUF(3000)F2 in the polar cap region

Method for the prediction of the frequency of airborne high-frequency circuits at high-altitude and long-distance communication

Radio Contact Establishment Out of Iraqi Boarder using Nicosia Ionosonde Real data

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