本文主要分析了航空声纳浮标的自噪声对其探测性能的影响，介绍了声纳浮标自噪声的种类，给出了声纳浮标自噪声的估计方法，分析了自噪声对浮标采集的声信号的信噪比，以及对浮标的作用距离的影响，归纳总结了国外声纳浮标对不同噪声源的降噪设计方法和浮标自噪声水平。分析表明，声纳浮标自噪声控制直接影响其探测性能，是浮标设计的关键，在工程上应对不同噪声源采取必要的降噪措施。

The influence of the self-noise of aeronautical sonobuoy on its detection performance are mainly analyzed in this paper. The types of sonobuoy self-noise are introduced in general and the estimation method of sonobuoy self-noise is given. The influence of self-noise on the signal-to-noise ratio of the acoustic signal collected by the buoy and the action distance of the buoy is analyzed quantitatively. The design methods and self-noise level of foreign sonobuoys for different noise sources are summarized. The analysis shows that the self-noise control of sonobuoy directly affects its detection performance， which is the key to buoy design. In engineering， necessary noise reduction measures should be taken to deal with different noise sources.