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A joint filter using lattice predictor based adaptive Volterra filter(LVF) is proposed to effectively suppress narrowband interference (NBI) in Global Positioning System (GPS) receiver. A lattice structure is employed for whitening the input signal. The performance is expressed in terms of BER and SNR improvement. Computer simulation results show that LVF can achieve excellent performance in terms...
A photonic frequency up-conversion scheme based on the nonlinear polarization rotation (NPR) arising in a semiconductor optical amplifier for wavelength-division-multiplexing (WDM) baseband signals is proposed and experimentally demonstrated. Error-free simultaneous up-conversion of 4 times 2.5 Gb/s WDM baseband channels with a 20-GHz local oscillator signal is experimentally demonstrated in the whole...
A simplified nonlinear adaptive prediction approach based on nonlinear processing and truncated Volterra filter(VF) structure is proposed to effectively suppress narrowband inference(NBI) in the direct-sequence spread-spectrum( DSSS) receiver. Simplicity of the proposed structure compared to the Volterra expression makes it more appropriate for modeling and equalizing nonlinear channels. The performance...
Simultaneous inverted and non-inverted wavelength conversions (WCs) at 10 Gb/s with 2R regeneration are demonstrated using nonlinear polarization rotation in an SOA. A power penalty reduction of 1.2 dB for inverted WC and 0.8 dB for non-inverted WC is obtained at a BER of 10-9.
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