This paper considers frequency-domain receiver design for OQPSK signals (Offset Quaternary Phase Shift Keying). It is shown that conventional QPSK receivers are not suitable to OQPSK schemes since they lead to significant interference between

We propose a digital clock recovery algorithm and demonstrate its tolerance to at least 5GHz laser frequency mismatch in a 43Gb/s DP-RZ-QPSK receiver after 1200km transmission.- We propose a digital clock recovery algorithm and demonstrat

仿真采用QPSK和16-QAM调制时，接收机采用理想信道估计和利用训练符号进行信道估计的误比特率性能-The simulation using QPSK and 16-QAM modulation, receiver with perfect channel estimation and using training symbols for the bit error rate performance of the channel estimation

QPSK软件接收机详细设计，详细分析接收机设计过程中的每一步操作，附录有详细MATLAB代码(QPSK software receiver detailed design, detailed analysis of the receiver design process in each step of operation, the appendix has detailed MATLAB code)