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Inter-symbol interference (ISI) may become detrimental when the data rate rises in the atmospheric scattering UV channel. In this paper, we model the ISI effect due to delay spread in the UV channel and evaluate the approach of direct sequence spread spectrum (DSSS) in eliminating ISI and improve the system performance. Both the measured noise and newly reported experimental results of impulse response...
In this paper, a method to improve the performance of Ultraviolet (UV) communication system without hardware enhancement in the optical link is presented and tested. Three kinds of noises are modeled and their impacts on the UV communication system are measured and analyzed. An FPGA-based moving average filter is utilized to reduce noise. In order to validate the designed filter, we implement a BER...
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