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We propose two methods of nullsteering for a compact analog uniform circular array system. One method is based on switched beam. The predefined null patterns were generated by nullsteering algorithms and saved in the array system. The second method is based on adaptive array. A single channel receiver and A/D converter were added to the analog array output for adaptive array processing. Therefore,...
This paper introduces an analog preprocessing network (APN) operating in radio frequency (RF), to cancel signals from interferers in an antenna array system. Interference cancellation facilitates the use of low resolution ADCs. For a given ADC resolution, we will propose the optimal beamformer to minimize the overall mean squared error (MSE) between the desired user and its received estimate, while...
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