A real-time explosive gas sensing (DNT) in atmospheric pressure utilizing the noise squeezing eect that occurs before a bifurcation event is investigated. A noise-squeezing controller based on the statistics of phase noise is implemented using high-speed Lab- VIEW eld programmable gated array. A high frequency TNT-molecularly imprinted xed-xed microbeam sensor utilizes this nontraditional sensing strategy and performs DNT sensing at various concentrations. Experiments are conducted using both noisebased and sweep-based bifurcation tracking for a direct comparison. Results demonstrate noise-based bifurcation tracking is not only capable of performing reliable frequency tracking, but also show the method is superior to the bifurcation sweep-based tracking. Over three orders of magnitude improvement in acquisition rate is achieved, and as a result, condence and precision on bifurcation frequency estimation is signi- cantly improved over the bifurcation sweep tracking method, enabling DNT sensing at concentrations much below sub-ppb (parts-per-billion) level.