## 1 Introduction  
Hydrodynamic noise is defined as an acoustic signal generated by pressure fluctuation, shear layers, vortices, and other factors in the process of fluid flow. The generation mechanism of hydrodynamic noise is complex and involves many aspects of fluid dynamics. This complexity leads to a diversity of characteristics under different working conditions. Significantly, in the domains of ocean engineering, ship design, and underwater equipment, hydrodynamic noise can exert a substantial influence on the performance of vessels and equipment [1,2]. In the context of acoustic sensor data acquisition, hydrodynamic noise frequently impedes the sensor's normal functioning, resulting in the generation of background noise signals that hinder the effective recognition of weak target echoes. This phenomenon leads to a decline in the accuracy of data acquisition and potentially triggers miscalculations in navigation, localization, and target recognition under complex conditions, further compromising the overall effectiveness of combat and detection operations. Specifically, when a sensor is subject to high noise interference, its signal-to-noise ratio is significantly diminished, which in turn affects the accuracy and real-time performance of the subsequent data processing algorithms. Consequently, the adoption of effective noise suppression and signal enhancement techniques is imperative [3, 4, 5]. Furthermore, the impact of hydrodynamic noise on marine organisms cannot be disregarded. A substantial body of research has demonstrated that marine organisms depend on sound waves as their primary medium for information exchange during processes such as communication, foraging, and reproduction. However, high-intensity hydrodynamic noise has been demonstrated to interfere with these normal communication patterns, obscuring signals from conspecifics or predators and thereby disrupting social behavior and the ecological balance among populations [6, 7, 8]. Cetaceans and dolphins, for instance, frequently utilize echolocation to forage for prey and collaborate within groups. These critical physiological behaviors are susceptible to interference in high-noise environments, which can adversely impact foraging efficiency and potentially contribute to population decline and ecosystem structural changes. Consequently, the regulation and mitigation of hydrodynamic noise has emerged as a pivotal strategy for safeguarding marine biodiversity and preserving ecological equilibrium. The analysis of sensor data acquisition and marine biological behavior reveals that the mitigation of hydrodynamic noise is contingent not only on the enhancement of marine engineering and equipment performance, but also on the preservation of the marine ecological environment and biological safety. Achieving sustainable development of the marine environment, while ensuring the safe and efficient operation of a project is only possible through a profound understanding and effective management of hydrodynamic noise. It is imperative to acknowledge the repercussions of hydrodynamic noise for both industrial and engineering endeavors, particularly with regard to the performance of equipment, the operating environment, and the well-being of personnel. The ramifications of hydrodynamic noise have elicited widespread concern, underscoring the necessity for comprehensive and effective management strategies to ensure the optimal functioning of marine ecosystems and the safety of human operations. In both daily life and engineering, particularly in domains involving pump systems, hydrodynamic noise has been demonstrated to have deleterious effects on quality of life and worker efficiency [9]. Research findings have indicated a direct correlation between elevated noise levels and detrimental effects on the psychological and physiological well-being of workers. Prolonged exposure to high noise levels has been demonstrated to increase stress and introduce greater safety risks [10, 11, 12, 13].