It can be seen from the figure that the larger the value of N, the sharper the peak of the fuzzy peak, the lower the duty cycle, and the slower the amplitude decrease from the delay axis. Moreover, the surrounding side peaks are almost as high as the main peak, and the entire volume is mainly concentrated in these regular, discretely distributed peaks, and a small part of the volume is distributed on the frequency axis and the line parallel to the frequency axis. The area between these parallel lines is a large blank area. It can be seen from the fuzzy graph that as long as the interference target and the observation target have a relative distance, the appropriate pulse width and pulse interval can be selected so that the interference target cannot interfere with the observation target. In this method, as long as T is greater than the maximum action distance, most of the volume of the fuzzy map is pushed to a place where it does not work, leaving only a small part to work. That is, the negative interference is improved by N times on average. This plays a very good role in eliminating the negative interference with wide distribution in both time and frequency.
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