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- Title
码分多址车载射频系统可行性研究.
- Authors
赵君伟
- Abstract
Code Division Multiple Access (CDMA) onboard system is an important part of Euroloop. In order to be compatible with European ring onboard system, it is necessary to add CDMA RF receiving and processing channels in the receiving and processing part. This paper studies the feasibility of RF signal processing channels, analyzes and studies from the aspects of high-power filters, low-noise amplifiers and differential conversion circuits, studies the characteristics and key technologies of the onboard radio frequency of Euroloop, and proposes the feasibility of CDMA onboard radio frequency system on the basis of modeling simulation and engineering realization verification of the filter, design analysis and index analysis of the low-noise amplifier and simulation and optimization of the differential conversion matching circuit.
- Subjects
CODE division multiple access; LOW noise amplifiers; DIFFERENTIAL amplifiers; SIGNAL processing; ENGINEERING models; RADIO technology; RADIO frequency
- Publication
Railway Signalling & Communication Engineering, 2022, Vol 19, Issue 12, p42
- ISSN
1673-4440
- Publication type
Article
- DOI
10.3969/j.issn.1673-4440.2022.12.009