Spatial Interference Filtering Techniques
Spatial Interference Filtering, or beamforming, has traditionally been accomplished with analog components and phased antennas.
Today, software defined radios can do beamforming and diversity reception digitally. This is accomplished with a dual-channel coherent SDR.
By manipulating the phase and amplitude of IQ data, beamforming is easily achieved with two antennas. It's a great approach for diversity reception and interference cancellation. PowerSDR and Linrad both support these techniques.
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