A Study on the High Reliability Audio Target Frequency Generator for Electronics Industry

Author:

Park Changsik12,Han Euntack13,Kim Ikjae14ORCID,Shin Dongkyoo15ORCID

Affiliation:

1. Department of Computer Engineering, Sejong University, Seoul 05006, Republic of Korea

2. Juyoung Electronic Co., Ltd., Gunpo-si 15844, Republic of Korea

3. Hyukshin Engineering Co., Ltd., Seoul 04623, Republic of Korea

4. R.O.K Cyber Operations CMD, Seoul 13834, Republic of Korea

5. Department of Convergence Engineering for Intelligent Drones, Sejong University, Seoul 05006, Republic of Korea

Abstract

The frequency synthesizer performs a simple function of generating a desired frequency by manipulating a reference frequency signal, but stable and precise frequency generation is essential for reliable operation in mechanical equipment such as communication, control, surveillance, medical, and commercial fields. Frequency synthesis, which is commonly used in various contexts, has been used in analog and digital methods or hybrid methods. Especially in the field of communication, a precise frequency synthesizer is required for each frequency band, from very low-frequency AF (audio frequency) to high-frequency microwaves. The purpose of this paper is to design and implement a highly reliable frequency synthesizer for application to a railway track circuit systems using AF frequency only with the logic circuit of an FPGA (field programmable gate array) without using a microprocessor. Therefore, the development trend of analog, digital, and hybrid frequency synthesizers is examined, and a method for precise frequency synthesizer generation on the basis of the digital method is suggested. In this paper, the generated frequency generated by applying the digital frequency synthesizer using the ultra-precision algorithm completed by many trials and errors shows the performance of generating the target frequency with an accuracy of more than 99.999% and a resolution of mHz, which is much higher than the resolution of 5 Hz in the previous study. This highly precise AF-class frequency synthesizer contributes greatly to the safe operation and operation of braking and signaling systems when used in transportation equipment such as railways and subways.

Funder

National Research Foundation of Korea

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

Reference21 articles.

1. Yoon, K., Song, M., Noh, J., and Lee, K. (2013). Design of Data Converters and PLL, Hongneung Science Publishing House.

2. A Digital Frequency Synthesizer;Tierney;IEEE Trans. Audio Electro Acoust.,1971

3. Analysis and Minimization of Phase Noise of The Digital Hybrid PLL Frequency Synthesizer;Ryu;IEEE Trans. Consum. Electron.,2002

4. High-Resolution Digital Beamforming Receiver Using DDS–PLL Signal Generator for 5G Mobile Communication;Kim;IEEE Trans. Antennas Propag.,2022

5. Queiroz, E.D., Ota, J.I.Y., and Pomilio, J.A. (2021, January 15–18). State-Space Representation Model of Phase-Lock Loop Systems for Stability Analysis of Grid-connected Converters. Proceedings of the 14th IEEE International Conference on Industry Applications 2021, São Paulo, Brazil. Available online: https://ieeexplore.ieee.org/abstract/document/9529609.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3