An Efficient Real-Time Signal Detection Method Based on Autocorrelation
Shengfeng Zhang, Zhu Ye-teng, Hongyuan Li · 2019
Aiming at the problem of signal detection in the digital receiver of electronic ware system, an efficient real-time method utilizes the arrival edge confidence criterion and dynamic threshold is proposed on the basis of autocorrelation. Confidence criterion of arrival edge is the combination of two criteria which named as ascending criterion and shock criterion, respectively. Furthermore, the dynamic threshold is used to maintain the measurement of pulse width. In consideration of autocorrelation characteristics between pure signal and noise, the calculation of dynamic threshold should under the premise of signal amplitude estimation. Finally, simulations verify the feasibility and effectiveness of the proposed method.