The stability of the integrated profile of PSR B0329 + 54 at 1,540 MHz is studied with the observation data of the Nanshan 25‐m radio telescope of up to 453 hr from 2003 to 2009. We find that the profiles of two modes tend to stabilize at a faster rate first, then change to a slower rate, and then become rapidly stabilized again. It is also shown that there are distinct differences in the profile stability behaviors on the short, intermediate, and long timescales. Our results will be valuable for future research on random processes in pulsar radio radiation.

中文翻译：

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PSR B0329 + 54的集成脉冲曲线的时标分析

利用2003年至2009年南山25米射电望远镜长达453 hr的观测数据，研究了PSR B0329 + 54在1540 MHz频率下的综合剖面的稳定性。我们发现两种模式的剖面在2000年趋于稳定。首先是较快的速率，然后变为较慢的速率，然后又迅速稳定下来。还表明，在短，中和长时标上，轮廓稳定性行为存在明显差异。我们的研究结果对于未来脉冲星无线电辐射随机过程的研究将是有价值的。