1 Intelligent Manufacturing Faculty, Wuyi University, Jiangmen 529020, China; 2 School of Electrical, Computer, Telecommunications Engineering, University of WollongGong, 2522, Australia
Abstract We utilize three parallel reservoir computers using semiconductor lasers with optical feedback and light injection to model radar probe signals with delays. Three radar probe signals are generated by driving lasers constructed by a three-element laser array with self-feedback. The response lasers are implemented also by a three-element lase array with both delay-time feedback and optical injection, which are utilized as nonlinear nodes to realize the reservoirs. We show that each delayed radar probe signal can be predicted well and to synchronize with its corresponding trained reservoir, even when parameter mismatches exist between the response laser array and the driving laser array. Based on this, the three synchronous probe signals are utilized for ranging to three targets, respectively, using Hilbert transform. It is demonstrated that the relative errors for ranging can be very small and less than 0.6%. Our findings show that optical reservoir computing provides an effective way for applications of target ranging.
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 62075168), GuangDong Basic and Applied Basic Research Foundation (Grant No. 2020A1515011088), and Special Project in Key Fields of Guangdong Provincial Department of Education of China (Grant No. 2020ZDZX3052 and 2019KZDZX1025).
Dong-Zhou Zhong(钟东洲), Zhe Xu(徐喆), Ya-Lan Hu(胡亚兰), Ke-Ke Zhao(赵可可), Jin-Bo Zhang(张金波),Peng Hou(侯鹏), Wan-An Deng(邓万安), and Jiang-Tao Xi(习江涛) Multi-target ranging using an optical reservoir computing approach in the laterally coupled semiconductor lasers with self-feedback 2022 Chin. Phys. B 31 074205
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