声学多普勒速度仪陆上仿真方法研究及其实现

随着声学测速精度的不断提高,声学多普勒速度仪已应用于多种载体的水下导航。根据多普勒速度仪的陆上仿真的需要,研究了多普勒速度仪的测速原理及矢量合成原理和坐标变换方法,推导了深度仿真和速度仿真公式,给出了仿真方法,同时设计了一种基于PXI的波形采集和回放模块,试验证明了所推导的公式的正确性和仿真方法的有效性。这种仿真方法对于不同类型的声学多普勒速度仪具有通用性,仿真电路实现了模块化设计,适用于其它的工程应用。

Study and Implement of Land Emulational Means on Acoustic Doppler Velocity Log

With the improvement of the precision of acoustic measuring velocity, acoustic Doppler velocity log has been used in the navigation of some kinds of career. According to the requirement of simulation of DVL, the theory of measuring velocity was studied. At the same time, the theory of vector synthesized and coordinate transformed were studied. The formula of depth and velocity simulation were given. Synchronously, a module of A/D and D/A based on PXI was designed. The experiment proved the validity and feasibility of the simulating method. The method is suitable to different kinds of DVL Simulating circuit is suitable to other similar engineering project.