Abstract: A method to improve the detection rate of dual signals in a mono-bit receiver was studied. First, the filter bank was used to divide the signal into multiple channels, and each channel was sampled and measured independently, and the detection rate was improved by reducing the influence of harmonics generated by nonlinear changes. Secondly, according to the statistics and analysis carried out on the false detection data after frequency measurement, a compensation matrix based on the analysis results was designed and used to correct the false detection results. The simulation results show that this method effectively improves the dual-signal detection rate of the mono-bit receiver, and the detection rate of large dynamic range is improved more obviously. When the normalized gain difference is 6 dB, the detection rate is 3.5 times of the original detection rate. Related research methods and conclusions have certain reference significance for practical engineering applications.