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Low-cost sensor system can check indoor air quality in real time

Humans spend about 80% of their time indoors, but keeping track of the air we breathe usually requires expensive lab-grade ...
IEEE

A Low Power DCOC Circuit with 57.7 dB DC-offset Attenuation for CW Radar Sensor

Abstract: This article presents the design of a novel DC-offset cancellation (DCOC) circuit aimed to use in a homodyne continuous wave (CW) radar sensor receiver to overcome the leakage problem and is ...