摘要：【中文】本发明公开一种基于PXIe总线、集成度较高的避碰声纳陆上检测系统，由声纳对接装置、数据采集和控制系统两部分组成；声纳对接装置由对接换能器和信号传输电缆组成；数据采集和控制系统包括PXIe母板、基于PXIe总线的高速A/D板、高速D/A板、高速控制CPU板、多通道低速D/A板、多通道低速A/D板、电源、触摸屏和信号调理板；同时提出了一种避碰声纳陆上检测方法。本发明提供的避碰声纳陆上检测系统集成度高、操作简单，相应提出的检测方法根据避碰声纳声传播理论模型和耦合损失模型动态调整回波信号强度，高精度模拟回波信号，实现对避碰声纳性能的陆上检测，有效解决了避碰声纳陆上检测的难题。 【EN】The invention discloses a PXIe bus-based collision-prevention sonar land detection system with higher integration level, which consists of a sonar docking device and a data acquisition and control system; the sonar butting device consists of a butting transducer and a signal transmission cable; the data acquisition and control system comprises a PXIe motherboard, a high-speed A/D board based on a PXIe bus, a high-speed D/A board, a high-speed control CPU board, a multi-channel low-speed D/A board, a multi-channel low-speed A/D board, a power supply, a touch screen and a signal conditioning board; meanwhile, a collision-prevention sonar land detection method is provided. The collision-prevention sonar land detection system provided by the invention has high integration level and simple operation, and the correspondingly provided detection method dynamically adjusts the intensity of the echo signal according to the collision-prevention sonar propagation theoretical model and the coupling loss model, simulates the echo signal with high precision, realizes land detection on the collision-prevention sonar performance, and effectively solves the problem of land detection of the collision-prevention sonar.