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分析了载波相位对高斯形几周期脉冲 (FCP)频率重心的影响 ,导出了频率重心的表达式 ,用解析方法证明了当等于 0和π/ 2时频率重心分别取最大值和最小值。在此基础上 ,用最大与最小频率重心的差来分析了“包络 +载波”脉冲描述方法的有效范围。
The influence of carrier phase on the center of gravity of several periodic pulses of Gaussian shape (FCP) is analyzed and the expression of the center of gravity of frequency is deduced. The analytic method is used to prove that the center of gravity of the frequency of fp is equal to 0 and π / 2 respectively, . On this basis, the effective range of “envelope + carrier” pulse description method is analyzed by the difference of the center of gravity of the maximum and minimum frequency.