The coherent optical fiber communication technology is attracting significant attentions in the world, because it can realize the spectrally efficient transmission system.
One major difference between 1980¡¦s and the latest coherent technology is the utilization of the digital signal processing (DSP). In 1980¡¦s the optical phase locked loop (OPLL) was required to realize the homodyne detection, and it was significantly difficult to realize. The latest coherent technology utilizes the DSP in place of the OPLL to realize the homodyne detection, and it is much easier than the OPLL.
The real-time realization of the DSP is still a problem. Because the DSP uses software to process the signal, it needs an extreme calculation power for the high-speed communication system. People always utilize the field programmable gate array (FPGA) to realize the real-time DSP, but the cost of the FPGA is too expensive for the commercial system at this moment.
This master thesis intend to utilize commercially available personal computer (PC) contained a GPU calculation board to replace FPGA. It can reduce the cost of the coherent receiver. Also, this receiver is defined by the software rather than the hardware. It means that we can realize a flexible receiver defined by the software.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0718112-170255 |
| Date | 18 July 2012 |
| Creators | Hsiao, Hsiang-Hung |
| Contributors | Hung-Wen Chang, Hidenori Taga, Chin-Ping Yu, Cheng-Mu Tsai |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718112-170255 |
| Rights | user_define, Copyright information available at source archive |
Page generated in 0.0025 seconds