研究目的
Investigating the feasibility of an improved FPGA parallel design for frequency offset estimation in coherent optical communication QPSK systems with low complexity.
研究成果
The proposed FPGA parallel design for frequency offset estimation in QPSK systems demonstrates low complexity and resource consumption, with BER performance comparable to traditional methods. It offers a feasible solution for real-time processing in coherent optical communication systems.
研究不足
The study focuses on QPSK systems and may not directly apply to other modulation schemes without further research. The number of parallel units N is fixed at 16, which may limit scalability for different system rates.
1：Experimental Design and Method Selection:
The study proposes an improved FPGA parallel design for frequency offset estimation in QPSK systems, comparing it with serial schemes through BER simulations.
2：Sample Selection and Data Sources:
The simulation system is a
3：5-GBaud polarization multiplexed QPSK coherent optical transmission system with a symbol block length of 512 and a laser linewidth of 100 kHz. List of Experimental Equipment and Materials:
FPGA for parallel processing, simulation software for BER analysis.
4：Experimental Procedures and Operational Workflow:
The design involves conjugate multiplication, absolute value calculation, and CORDIC module for angle operation, followed by frequency offset estimation and compensation.
5：Data Analysis Methods:
BER simulation results are compared between the proposed parallel design and traditional serial schemes.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
