Because the width of both the new kernel and modified kernel are adaptive to signal length, both of them avoid large loss of energy of autoterms while obtaining certain performance in reducing crossterms of WVD (Wigner-Ville distribution).

• 两种新的核函数的宽度对信号长度具有自适应能力，所以在获得了一定的交叉项抑制能力的同时，避免了较大的信号自项能量损失。