Study on the Detection Method of Electromagnetic Wave Signal under Clutter Jamming
Siwei Li · Advances in engineering research/Advances in Engineering Research · 2015
During the study process of electromagnetic wave signal detection method under clutter jamming, the influence of noise and interference are not considered when the current algorithm is used to detect electromagnetic wave signal, thus there is problem of large detection error.An electromagnetic wave signal detection method under clutter jamming based on the improved morphological processing algorithm is proposed.The algorithm first combines mathematical morphology filtering and threshold detection, and detects the characteristic parameters, like electromagnetic wave signal electric field strength, magnetic field intensity, polarization flatness, polarization rotation and vector propagation direction, on the basis of it, distance unit echo of larger amplitude in the detection window is regarded as the target echo to judge, and accurately complete electromagnetic wave signal detection under clutter jamming.The experimental results show that the detection method of electromagnetic wave signal based on the improved morphological processing algorithm has the high accuracy and the noise immunity.