Original title: Quantization-Aware Hybrid Anti-Interference Receiver for Partially Connected Arrays with Low-Resolution ADCs
Dahai Ni, Chaolin Zeng, Hongbo Yin, Kun Chen +2 · September 2026
Modern wireless systems use large antenna arrays to steer signals. To save power and money, engineers connect groups of antennas to single signal processors and use low-resolution converters to turn analog waves into digital data. But in crowded places, strong unwanted interference can overwhelm these cheap converters and create heavy digital distortion. To fix this, researchers designed a three-stage receiver that blocks interference in steps. First, it sweeps the area with randomized settings to map where interference comes from, while mathematically accounting for the converter errors. Second, it tunes physical phase shifters to place blind spots, called analog nulls, directly toward the unwanted signals. This weakens them before they ever reach the digital converters. Third, a digital filter cleans up any leftover interference. Testing showed that this method improves the output signal quality over existing hybrid designs across varied interference levels, limited measurements, and hardware with low bit resolutions.
Imagine trying to hear one friend at a loud party. You have small earplugs that protect your ears but muffle everything, so you rely on turning your head to aim one ear toward the speaker and away from the blaring music. The problem is, if you don't know where the music is coming from, your head turns the wrong way. In this paper, the receiver first scans to find the interference, then steers its antenna pattern to block those directions — exactly like turning your ear away — before the weak converter digitizes the signal.
Massive antenna arrays in 5G and defense save power by using low-resolution converters, but strong interference can overload them. This receiver blocks interference before it hits the converters, so cheap, efficient hardware can still work in dense electromagnetic environments. That means lower-cost systems without sacrificing resilience to jamming.
The abstract reports simulation results only, not hardware experiments. It evaluates relative gains over hybrid baselines, not absolute performance. The method targets partially connected arrays specifically, and real-world interference may not match the assumed model.
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Quantization-Aware Hybrid Anti-Interference Receiver for Partially Connected Arrays with Low-Resolution ADCs — Dahai Ni, Chaolin Zeng, Hongbo Yin et al. — Sensors — doi:10.3390/s26185977
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper.