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根据小演变换的奇异性检测原理，分析了环境温度变化对原子钟特性的影响；基于小坡变换的信号重建原理，将温度变化引起原子钟相位－时间起伏进行时域一频域分析；用小演变换理论分析了由于昼夜温度变化引起原子钟周期性波动的原因，结合传统的谱分析方法，认证了原子钟相位－时间起伏的周期性。结果表明：在有环境温度调节的环境中，氢原子钟的相位－时间起伏标准差为41ns左右；在一般环境中，铯原子钟的相位－时间起伏标准基为21ns左右，改善环境条件可以提高原子钟的频率稳定度。
According to the singularity detection principle of small-scale transformation, the influence of ambient temperature on the atomic clock characteristics was analyzed. Based on the signal reconstruction principle of small slope transformation, the time-frequency-frequency domain analysis of atomic clock phase- The exchange theory analyzes the cause of the periodic fluctuation of the atomic clock due to the temperature change of day and night. Combined with the traditional spectral analysis method, the periodicity of the atomic clock-time fluctuation is verified. The results show that the phase-time fluctuation standard deviation of hydrogen atomic clock is about 41ns in an environment with ambient temperature adjustment. In normal environment, the phase-time fluctuation standard base of cesium atomic clock is about 21ns. Improving environmental conditions can improve the atomic clock Frequency stability.