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橢圓球面函數(shù)頻域調(diào)制解調(diào)方法

陸發(fā)平,  王紅星,  劉傳輝,  康家方,  楊大偉

陸發(fā)平, 王紅星, 劉傳輝, 康家方, 楊大偉. 橢圓球面函數(shù)頻域調(diào)制解調(diào)方法[J]. 電子與信息學(xué)報(bào), 2020, 42(8): 1888-1895. doi: 10.11999/JEIT190642
引用本文: 陸發(fā)平, 王紅星, 劉傳輝, 康家方, 楊大偉. 橢圓球面函數(shù)頻域調(diào)制解調(diào)方法[J]. 電子與信息學(xué)報(bào), 2020, 42(8): 1888-1895. doi: 10.11999/JEIT190642
Faping LU, Hongxing WANG, Chuanhui LIU, Jiafang KANG, Dawei YANG. PSWFs Frequency Domain Modulation and Demodulation Method[J]. Journal of Electronics & Information Technology, 2020, 42(8): 1888-1895. doi: 10.11999/JEIT190642
Citation: Faping LU, Hongxing WANG, Chuanhui LIU, Jiafang KANG, Dawei YANG. PSWFs Frequency Domain Modulation and Demodulation Method[J]. Journal of Electronics & Information Technology, 2020, 42(8): 1888-1895. doi: 10.11999/JEIT190642

橢圓球面函數(shù)頻域調(diào)制解調(diào)方法

doi: 10.11999/JEIT190642 cstr: 32379.14.JEIT190642
  • 1.

    海軍航空大學(xué) 煙臺(tái) 264001

  • 2.

    山東省信號(hào)與信息處理重點(diǎn)實(shí)驗(yàn)室 煙臺(tái) 264001

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61701518)，山東省“泰山學(xué)者”建設(shè)工程專項(xiàng)經(jīng)費(fèi)基金(ts20081130)
詳細(xì)信息
    作者簡(jiǎn)介:

    陸發(fā)平：男，1991年生，博士生，研究方向?yàn)楝F(xiàn)代通信系統(tǒng)、非正弦波通信

    王紅星：男，1962年生，教授，研究方向?yàn)楝F(xiàn)代通信系統(tǒng)、非正弦波通信、無(wú)線光通信

    劉傳輝：男，1984年生，講師，研究方向?yàn)楝F(xiàn)代通信新技術(shù)、非正弦波通信

    康家方：男，1987年生，講師，研究方向?yàn)楝F(xiàn)代通信新技術(shù)、擴(kuò)頻通信、非正弦波通信

    楊大偉：男，1988年生，博士生，研究方向?yàn)楝F(xiàn)代通信新技術(shù)、非正弦波通信

    通訊作者:

    劉傳輝　lchgfy@163.com

  • 中圖分類號(hào): TN911.3

PSWFs Frequency Domain Modulation and Demodulation Method

  • 1.

    Naval Aviation University, Yantai 264001, China

  • 2.

    Key Laboratory on Signal & Information Processing of Shandong Provience, Yantai 264001, China

Funds: The National Natural Science Foundation of China (61701518), The Special Foundation Project of Taishan Scholar of Shandong Province (ts20081130)
  • 摘要:

    針對(duì)基于橢圓球面波函數(shù)(PSWFs)的非正弦時(shí)域調(diào)制算法復(fù)雜度高的不足，該文引入空間映射，分析了PSWFs信號(hào)頻域完備正交性，推導(dǎo)出PSWFs信號(hào)頻域有效表示所需最小抽樣點(diǎn)數(shù)。在此基礎(chǔ)上，引入復(fù)數(shù)域映射、FFT/IFFT信號(hào)處理框架，提出PSWFs頻域調(diào)制解調(diào)方法。該方法將PSWFs信號(hào)處理由時(shí)域拓展到頻域，在頻域進(jìn)行信息加載與檢測(cè)，為探索研究PSWFs信號(hào)在5G、超5G等采用頻域信號(hào)處理的通信系統(tǒng)中的應(yīng)用提供了可能。理論和數(shù)值分析表明，相對(duì)于PSWFs時(shí)域調(diào)制，所提方法將能夠在不改變系統(tǒng)頻帶利用率、系統(tǒng)誤碼性能、調(diào)制信號(hào)能量聚集性以及信號(hào)峰均功率比的前提下，顯著降低算法復(fù)雜度，將運(yùn)算復(fù)雜度由O(2Qg2)降低為O(g2+glog2g)。

    Abstract:

    In view of the problem of high complexity for non-sinusoidal time domain modulation algorithms based on Prolate Spheroidal Wave Functions (PSWFs), spatial mapping is introduced to analyze the complete orthogonality and derive the minimum number of sampling points of PSWFs in the frequency domain. On this basis, the complex domain mapping and FFT/IFFT signal processing framework are introduced, and the PSWFs frequency domain modulation and demodulation method are proposed. The proposed method extends PSWFs signal processing from time domain to frequency domain, providing a possibility for exploring and studying the application of PSWFs signal to 5G, beyond 5G which use frequency domain signal processing. Theory and numerical analysis show that, compared with the time domain modulation, the proposed method can reduces the complexity of the algorithm from O(2Qg2) to O(g2+glog2g) without changing the system spectral efficiency, system error performance, modulation signal energy aggregation, and peak-to-average power ratio.

    • HTML全文

  • 圖  1  信號(hào)頻域拓展產(chǎn)生整個(gè)頻率范圍信號(hào)

    圖  2  PSWFs頻域調(diào)制方法原理框圖

    圖  3  PSWFs頻域檢測(cè)原理框圖

    圖  4  信號(hào)頻域抽樣點(diǎn)選擇

    圖  5  系統(tǒng)誤碼性能、信號(hào)功率譜與CCDF

    表  1  仿真參數(shù)設(shè)置

    參數(shù)符號(hào)數(shù)值
    信號(hào)時(shí)間帶寬積g36 Hz·s
    信號(hào)時(shí)寬T66.7 μs
    信號(hào)頻帶范圍[0 0.27] MHz
    信號(hào)路數(shù)c-kk1
    時(shí)域抽樣點(diǎn)個(gè)數(shù)NT1024
    頻域總抽樣點(diǎn)個(gè)數(shù)NFg+1
    增加抽樣點(diǎn)數(shù)NP2
    下載: 導(dǎo)出CSV
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    WANG Ruyan, LIANG Yingjie, and CUI Yaping. Intelligent resource allocation algorithm for multi-platform offloading in vehicular networks[J]. Journal of Electronics &Information Technology, 2020, 42(1): 263–270. doi: 10.11999/JEIT190074
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出版歷程
  • 收稿日期:  2019-08-26
  • 修回日期:  2020-04-29
  • 網(wǎng)絡(luò)出版日期:  2020-05-13
  • 刊出日期:  2020-08-18

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