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Distributed Multi-target Localization System Based on Optical Wavelength Division Multiplexing Network
DOI: 10.12000/JR19028
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Abstract
A distributed multi-target localization system based on optical Wavelength Division Multiplexing (WDM) network is demonstrated. The wideband orthogonal waveforms are generated by introducing the chaotic OptoElectronic Oscillator (OEO). The optical WDM network is introduced to transmit the wideband signals from multiple distributed transmitting and receiving units to the central station for processing, and the accurate localization of multiple targets is achieved based on the time of arrival localization method. The multiple optical carriers are generated at the central station, the complex processing to achieve the high-precision of the target localization is supported by the resources at the central station, and the remote transmitting and receiving units are simplified. Moreover, a proof of concept of the distributed multi-target localization system based on optical WDM network is obtained. The localization system comprising two transmitters and two receivers is experimentally established. The orthogonal chaotic waveforms with the frequency range of 3.1～10.6 GHz are successfully generated from the chaotic OEOs. The two-dimensional localization of two targets is realized via the maximum positioning error of 7.09 cm. Additionally, the reconfiguration of the system is experimentally verified. -
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References
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- Figure 1. Distributed multi-target localization system based on optical WDM network
- Figure 2. The structure of the transmitter
- Figure 3. The structure of the receiver
- Figure 4. The localization solution process
- Figure 5. Schematic diagram of TOA localization with the system composed of two transmitters and two receivers
- Figure 6. The generated chaotic signal
- Figure 7. The results of the generated chaotic signal
- Figure 8. The received signal
- Figure 9. Experimental results of two targets localization
- Figure 10. Experimental results of two targets localization when changing the transmitter positions