中圖分類號： TN911.3 文獻(xiàn)標(biāo)識碼： A DOI：10.16157/j.issn.0258-7998.201053 中文引用格式： 邵凱,，李慧,，周娟紅. 基于譜線特征的OFDM與FBMC多載波波形識別[J].電子技術(shù)應(yīng)用，2021,，47(6)：67-70,，76. 英文引用格式： Shao Kai，Li Hui,，Zhou Juanhong. Multi-carrier waveform recognition of OFDM and FBMC based on spectral features[J]. Application of Electronic Technique,，2021，47(6)：67-70,，76.
Multi-carrier waveform recognition of OFDM and FBMC based on spectral features
Shao Kai1,，2，Li Hui1,，2,，Zhou Juanhong1,，2
1.School of Communication and Information Engineering，Chongqing University of Posts and Telecommunications,， Chongqing 400065,，China； 2.Chongqing Key Laboratory of Mobile Communications Technology,，Chongqing University of Posts and Telecommunications,， Chongqing 400065，China
Abstract： This paper focuses on the modulation recognition of orthogonal frequency division multiplexing(OFDM) and filter bank-based multicarrier(FBMC). Firstly, the quadratic spectrum of subcarrier signals is analyzed for OFDM and FBMC. Then,，the corresponding quadratic spectrum expression is gotten through modeling, and the intensity and position of each spectrum are gotten. Finally,，seting the characteristic parameters， the modulation identification of OFDM/FBMC is accomplished under Gaussian noise. The simulation results show that the signal recognition rate is still higher at a lower SNR.
Key words : modulation signal recognition,；filter bank-based multicarrier(FBMC),；orthogonal frequency division multiplexing(OFDM)；quadratic spectrum
0 引言
在移動通信系統(tǒng)的不斷演進(jìn)過程中,，針對第六代移動通信系統(tǒng)(The 6th Generation Mobile Communication System,，6G)的探索已逐步進(jìn)行[1]，且6G對多種多樣的應(yīng)用及各種服務(wù)提出了更高的需求[2],。因此其物理層調(diào)制波形需要滿足各種各樣的情況[3],。文獻(xiàn)[4]和文獻(xiàn)[5]中提出不同的場景需要靈活適配不同參數(shù)波形來傳輸。
