Chao Gu, Yanfu Yang, Qun Zhang, Zhiying Lin, Qian Xiang. New DSP Scheme for Joint Wide-Range Estimation of IQ Impairment in Optical Transceiver[J]. Acta Optica Sinica, 2021, 41(5): 0506001
- Acta Optica Sinica
- Vol. 41, Issue 5, 0506001 (2021)
Fig. 1. Cascaded DDLMS. (a) Diagram of DDLMS flow; (b) structure of cascaded DDLMS
Fig. 2. Simulation system of optical transmission
Fig. 3. Diagram of DSP algorithm flow
Fig. 4. Simulation results of three DSP schemes. (a) IQ amplitude imbalance of Tx; (b) IQ phase imbalance of Tx; (c) IQ time skew of Tx
Fig. 5. Error of transceiver joint estimation. (a)(d) IQ amplitude imbalance; (b)(e) IQ phase imbalance; (c)(f) IQ time skew
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