3G and 4G Communication System Interference Remediation Techniques
3G and 4G mobile communications systems pose significant interference threats to the AN/SPY-1 operability ashore and in littoral environments. The specific frequency bands at which such interference sources may appear vary with geographic locations across the world. Adaptive array based techniques are not attractive in relation to the AN/SPY-1 radar because they require major upgrades to the radar. TSC propose to implement its proven local optimization technology to develop spectrally compliant, constant amplitude, AN/SPY-1 waveforms, with spectral level sufficiently low in the interference band to protect the mobile communication systems from mutual interference. TSC also proposes to implement optimal mismatched filters on receive that will protect the radar from 3G & 4G interference, and will guaranty high quality time domain waveform performance. TSC proposes to accomplish the above using affordable and practical radar upgrades, incorporating an arbitrary waveform generator and utilizing the current signal processor. TSC will also address and model the transmitter noise limitations and proposes to mitigate them, in Phase II, via pre-distortion techniques. This approach holds the potential for performance to be attained without the need for expensive transmitter upgrades.
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Technology Service Corporation
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