Author(s)

Lusheng Yang ¹

Affiliation(s)

¹ College of Computer and Communication, Lanzhou University of Technology, Lanzhou, 730050, China

Corresponding Author

Lusheng Yang

ABSTRACT

The communication network of our country is developing vigorously, and the digital communication system has a certain development prospect. However, for wireless signal transmission, signal modulation is needed to ensure the output results. To use the limited bandwidth to transmit digital signals more efficiently, the corresponding digital signals need to be modulated by the carrier. In this paper, the digital signal is transmitted by carrier modulation, and under the condition of Gaussian white noise, the modelling and simulation of 2ASK modulation and demodulation system are realized by using Simulink and m file respectively, and the anti-noise performance of the system can be seen. And through the m file to achieve non-coherent demodulation and coherent demodulation through the Simulink, we can see the advantages and disadvantages of the two ways. At the end of the paper, the bit error rate of the 2ASK signal is analyzed.

KEYWORDS

2ASK, Bit error rate, Modulation, Demodulation, Simulink

CITE THIS PAPER

Lusheng Yang, 2ASK System Modeling and Simulation. Automation and Machine Learning (2022) Vol. 3: 55-62. DOI: http://dx.doi.org/10.23977/autml.2022.030209.

REFERENCES

[1] Hannan M A ,  Abbas S M ,  Samad S A , et al. Modulation Techniques for Biomedical Implanted Devices and Their Challenges[J]. Sensors, 2012, 12(1):297-319.
[2] Lee, Jaeyoon et al. New BER expression of hierarchical M-ary phase shift keying[J]. ETRI JOURNAL, 2007, 29(6):707-715.
[3] Zhang Chenguang. Noise Jamming Method and Simulation of Digital Communication System. Xidian University, 2007.
[4] Wang Geng et al. Analysis and Simulation of 2ASK Digital Band-pass Transmission System Basing on SIMULINK [J]. 2016.
[5] Hou Ye, Li Baiping, Lu Wei. Modeling and Simulation of 2ASK Digital Modulation System [J]. Computer Knowledge and Technology: Experience and Skills, 2016, 12 (28): 236-238.

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