This study is the further research of the path encoding pulse compression technique. In this study, the regularity of pulse compression gain is studied by adopting the numerical simulation and experiment measurement methods. For the lossless cavity, the power gain has the characteristic of equal pulse length with equal compression gain contribution according to the numerical simulation results. It means that the pulse compression gain is increased linearly along with the time length of the input pulse. The obtained pulse power gains are equal for the two subpulses intercepted arbitrarily form the input pulse with equal time length for the pulse compression. For the lossy cavity, the power gain usually does not increase significantly after the length of input pulse reaches to a certain value. The gain contribution decreases gradually along with the increase of time length of input pulse until the growth rate of gain contribution equals to zero. Assuming two subpulses with equal time length were intercepted from the input pulse, the gain contribution of the earlier subpulse is lower than that of the later subpulse. The measured results verified the simulated gain contribution regularity according to the established experimental system.

中文翻译：

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路径编码脉冲压缩获得的高功率微波增益规律研究

本研究是对路径编码脉冲压缩技术的进一步研究。本研究采用数值模拟和实验测量的方法研究脉冲压缩增益的规律。根据数值模拟结果，对于无损腔，功率增益具有等脉冲长度和等压缩增益贡献的特性。这意味着脉冲压缩增益随着输入脉冲的时间长度线性增加。脉冲压缩时长相等的输入脉冲任意截取的两个子脉冲，得到的脉冲功率增益相等。对于有损腔，输入脉冲长度达到一定值后，功率增益通常不会显着增加。随着输入脉冲时间长度的增加，增益贡献逐渐减小，直到增益贡献的增长率等于零。假设从输入脉冲中截取两个时间长度相等的子脉冲，较早的子脉冲的增益贡献低于较晚的子脉冲。根据所建立的实验系统，测量结果验证了模拟增益贡献的规律性。