Blind estimation of modulation parameters for PCMA signals using frame cyclic features

EURASIP Journal on Advances in Signal Processing

Research

Tianyun Li¹  Xiong Zha¹  Fang Li¹  Zhaoyang Qiu¹ 

[1] Institute of Information System Engineering, Information Engineering University, Zhengzhou, China;

关键词: PCMA;    Blind receiver;    SVD;    Frame cyclic features;    Parameters estimation;   

DOI  :  10.1186/s13634-023-01055-6

 received in 2023-03-09, accepted in 2023-09-12,  发布年份 2023

来源: Springer

【 摘 要 】

Blind receiver technologies for paired carrier multiple access (PCMA) signals have always been a challenging task with many technical difficulties, among which the estimation of modulation parameters is a fundamental but important element. Despite some achievements in previous studies, more systematic and sophisticated estimation methods have not been adequately investigated. In this paper, schemes for the blind estimation of the symbol timing phase, amplitude attenuation, frequency offset, and carrier phase for PCMA signals in satellite communications are proposed. The data flow transmitted in satellite communication often has a certain frame structure, the most important of which is the synchronization data, namely the so-called cycle features. The proposed schemes assume that the modulated signals have fixed frame length and frame sync code and that the symbol rate has been estimated when the signals are encoded asynchronously. Distinct from the previous methods, our schemes exploit the sync waveform and the overlapping waveform, which are estimated via singular value decomposition (SVD) (using the frame cyclic features) and interference cancelation, together with their demodulation results as aid data, for the estimation of the desired parameters. The simulation results demonstrate that the schemes are effective in the parameters estimation of PCMA signals and outperform the comparison algorithms.

【 授权许可】

CC BY   
© Springer Nature Switzerland AG 2023

【 图 表 】

Fig. 2

Fig. 4

Fig. 6

Fig. 2

Fig. 1

Fig. 1

Fig. 6

Fig. 1

Fig.1

13690_2023_1170_Article_IEq35.gif

41523_2023_572_Article_IEq1.gif

Fig. 1

Fig. 1

Fig. 5

Fig. 1

Fig. 6

40463_2023_661_Article_IEq10.gif

Fig. 1

Fig. 1

Fig. 9

Fig. 4

Fig. 1

13690_2023_1170_Article_IEq32.gif

Fig. 1

Fig. 7

Fig. 5

13690_2023_1170_Article_IEq31.gif

13690_2023_1170_Article_IEq30.gif

40249_2023_1134_Article_IEq1.gif

Fig. 3

13690_2023_1170_Article_IEq27.gif

Fig. 1

13690_2023_1170_Article_IEq26.gif

Fig. 2

Fig. 4

13690_2023_1170_Article_IEq142.gif

Fig. 3

Fig. 1

Fig. 4

Fig. 3

13063_2023_7648_Article_IEq5.gif

13690_2023_1170_Article_IEq25.gif

Fig. 3

13690_2023_1170_Article_IEq24.gif

13690_2023_1170_Article_IEq21.gif

Fig. 2

Fig. 1

12888_2023_5172_Article_IEq50.gif

12888_2023_5172_Article_IEq53.gif

Fig. 1

12888_2023_5172_Article_IEq48.gif

12888_2023_5172_Article_IEq47.gif

12888_2023_5172_Article_IEq46.gif

12888_2023_5172_Article_IEq45.gif

12888_2023_5172_Article_IEq44.gif

41408_2023_919_Article_IEq13.gif

12888_2023_5172_Article_IEq39.gif

Fig. 1

12888_2023_5172_Article_IEq37.gif

12888_2023_5172_Article_IEq34.gif

Fig. 4

12888_2023_5172_Article_IEq28.gif

Fig. 1

Fig. 2

13690_2023_1170_Article_IEq3.gif

Fig. 1

Fig. 7

Fig. 1

Fig. 6

12888_2023_5168_Article_IEq3.gif

12888_2023_5172_Article_IEq18.gif

Fig. 2

Fig. 2

Fig. 3

Fig. 4

13690_2023_1170_Article_IEq87.gif

Fig. 2

Fig. 7

Fig. 2

Fig. 2

Fig. 1

Fig. 1

12888_2023_5142_Article_IEq25.gif

Fig. 1

13690_2023_1170_Article_IEq196.gif

12888_2023_5142_Article_IEq6.gif

12888_2023_5142_Article_IEq5.gif

12888_2023_5142_Article_IEq4.gif

12888_2023_5142_Article_IEq3.gif

13690_2023_1170_Article_IEq188.gif

13690_2023_1170_Article_IEq75.gif

13690_2023_1170_Article_IEq187.gif

13690_2023_1170_Article_IEq74.gif

Fig. 5

Fig. 5

Fig. 4

Fig. 2

Fig. 2

Fig. 2

Fig. 1

Fig. 4

13690_2023_1170_Article_IEq167.gif

12951_2023_2095_Article_IEq4.gif

Fig. 6

12951_2023_2095_Article_IEq3.gif

Fig. 8

40798_2023_628_Figd_HTML.png

Fig. 2

Fig. 1

Fig. 2

Fig. 4

13690_2023_1170_Article_IEq153.gif

13690_2023_1170_Article_IEq38.gif

Fig.1

13690_2023_1170_Article_IEq35.gif

Fig. 1

Fig. 1

Fig. 7

Fig. 5

Fig. 4

Fig. 4

42004_2023_990_Article_IEq32.gif

40463_2023_661_Article_IEq9.gif

13690_2023_1170_Article_IEq148.gif

Fig. 7

13731_2023_332_Article_IEq8.gif

Fig. 2

Fig. 3

13063_2023_7648_Article_IEq5.gif

13690_2023_1170_Article_IEq25.gif

Fig. 3

13690_2023_1170_Article_IEq24.gif

Fig. 4

Fig. 3

Fig. 2

13690_2023_1170_Article_IEq19.gif

13690_2023_1170_Article_IEq18.gif

Fig. 1

Fig. 6

Fig. 8

Fig. 3

Fig. 3

Fig. 2

13690_2023_1170_Article_IEq205.gif

12902_2023_1459_Article_IEq2.gif

Fig. 7

12888_2023_5142_Article_IEq13.gif

Fig. 5

Fig. 5

Fig.3

Fig. 3

13690_2023_1170_Article_IEq181.gif

Fig. 14

Fig. 1

Fig. 3

13690_2023_1170_Article_IEq173.gif

Fig. 1

Fig. 2

13690_2023_1170_Article_IEq167.gif

Fig. 6

42004_2023_990_Article_IEq67.gif

Fig. 1

13690_2023_1170_Article_IEq163.gif

Fig. 6

13690_2023_1170_Article_IEq161.gif

40798_2023_628_Figa_HTML.png

Fig. 4

13395_2023_325_Article_IEq1.gif

13690_2023_1170_Article_IEq47.gif

13690_2023_1187_Article_IEq1.gif

Fig. 3

Fig.1

Fig. 1

Fig. 7

13690_2023_1170_Article_IEq146.gif