Performance of the Target Detection Based on Instantaneous Frequency Time-Frequency Energy Integration

Abstract

The target detection feasibility and performance based on the TF energy integration are analyzed in this paper. Assuming the phase of signal is known, the time-frequency(TF) energy signal is got through TF transform, and the energy along the instantaneous frequency(IF) curve is integrated, the TF energy is used for target detection. Analytical and experimental results show that TF energy integration method based the target detection performance increases almost 6dB as compared to non-coherent integration, the advantage of the TF energy integration detection is that the echo signal parameters aren’t needed to be known.