Abstract:

In order to estimate the time of arrival and pulse width, the idea of edge detection in image processing is applied to the pulse detection problem in electronic countermeasure, and a pulse detection algorithm based on difference of boxes (DOB) filter is presented. The algorithm flow is offered after derivation, and the detection results with different filter orders and under different signal-to-noise ratios are analyzed by simulation. The result shows that the algorithm offers a better detection performance than the energy detection method, while the filter size should not be larger than the length of samples in the pulse.