4DPolSK接收机的设计与实现

Design and implementation of the receiver of 4DPolSK

在分析四进制差分偏振移位键控(4DPolSK)技术的基础上,首次提出了4DPolSK通信系统接收机的整体设计方案,包括光路的Stokes参数提取、电路的放大、采样与处理芯片FPGA的解调算法与判决。该方案设计新颖、价格低廉,通过重新配置FPGA可用作任何偏振移位键控系统(PolSK)的接收机。

Based on the analysis of 4-level Differential Polarization Shift Keying technology, design and implementation of the receiver of 4DPolSK is first proposed, which includes the design of Stokes parameters extraction in optical part, the design of amplifying and sampling in the electrical part, the design of demodulation algorithm and judging in the FPGA. The scheme of the receiver is novel and cheap which can be used as a demodulator in any Polarization Shift Keying system by reconfiguring the FPGA.