W頻段衛星通信中的恒包絡(luò )OFDM技術(shù)

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W頻段衛星通信中的恒包絡(luò )OFDM技術(shù)
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作者單位:(空軍工程大學(xué) 信息與導航學(xué)院,西安 710077)
作者簡(jiǎn)介:趙 樂(lè )(1989-),男,陜西省渭南市人,碩士研究生,主要從事移動(dòng)與衛星通信方向的研究。 宋愛(ài)民(1964-),男,陜西省西安市人,教授,碩士研究生導師,主要從事移動(dòng)與衛星通信方向的研究。[FQ)]
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中圖分類(lèi)號:TN927
基金項目:航空科學(xué)基金(20120196002)。

Constant Envelope OFDM Technology of W Band for Satellite Communication[HS)]

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(School of Information and Navigation, Air Force Engineering University, Xi’ an 710077, China)

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摘要:

隨著(zhù)傳統的C頻段,Ku頻段,Ka頻段的逐漸飽和,人們開(kāi)始研究特高頻段(EHF)的衛星通信頻段,W頻段(75~110 GHz)衛星通信憑借更高的傳輸速率和天線(xiàn)增益等優(yōu)勢受到了人們的關(guān)注;總結了W頻段衛星通信的優(yōu)缺點(diǎn),結合衛星通信頻譜效率問(wèn)題介紹了在衛星信道中采用正交頻分復用(OFDM)傳輸方式,針對OFDM高峰均比的問(wèn)題研究了恒包絡(luò )OFDM,對恒包絡(luò )OFDM的性能進(jìn)行了分析;分析表明恒包絡(luò )OFDM解決了OFDM帶來(lái)的高峰均比問(wèn)題,但性能受調制方式嚴重影響,最后結合其發(fā)展現狀展望了恒包絡(luò )OFDM發(fā)展的趨勢。

Abstract:

With the saturation of C, Ku and Ka frequency channel, people begin to study the higher frequency channel for satellite communication, and W band for satellite communication has been paid more attention because of its high transmission rate and antenna gain etc. The advantages and disadvantages of W band satellite communication are summarized, and the OFDM transmission technology in the satellite channel based on the efficiency problem is introduced. According to the high peak-to-average radio of OFDM, constant envelope OFDM is studied and its performance is analyzed. The analysis result is that constant envelope OFDM solve the problem of high peak-to-average, however, it is effected by the modulation ways. Finally, its development trend is put forward combined with the development situation . 

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趙樂(lè ),宋愛(ài)民,劉劍,馬彥博. W頻段衛星通信中的恒包絡(luò )OFDM技術(shù)計算機測量與控制[J].,2014,22(8):2660-2662.

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收稿日期:2014-04-11
最后修改日期:2014-04-24
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