Underwater Acoustic Communication Network Protocol Semi-physical Simulation System

Acoustic communications network technology research and development platform is the future of underwater acoustic communication technology development research foundation, and it mainly consists of multiple underwater acoustic communication machine engineering prototype, the software of the node environment, half physical simulation test system and sea trial base to form.\"Underwater acoustic communication network protocol semi-physical simulation validation system\" in the access multiple communication node, then the man-machine interface node parameter setting communication and Marine environment parameters to simulate the Marine environment each node in the network of communication between the influence of communication network protocol, algorithm is verified, etc.This paper main contents of the simulation test system is the underwater acoustic channel model and interface design and implementation. Papers on the main features of the underwater acoustic channel carries on the analysis, this paper expounds the basic theory rays, and based on this theory model application ray tracking the eigenvalue of the voice search algorithm, and completed the rays model is realized. Based on the function of the display and control software requirements, design the control module and interface display module to realize real-time monitoring system of communication, and communication machine running status display. Among them, the main engine control module to complete the operation of the system and synchronous control, initialization parameter Settings, and through the interaction of DSP and get the simulation data. Interface display modules realize output data of the waveform of DSP rendering, occupancy resources to larger graphic interface, create a new interface thread to solve the problem of not fluent interface update, with double buffering mechanism with documents when switching from delay and data broken frame, and ensure the data real-time and continuous uninterrupted. Choose VC6.0complete the writing of the display control software, and through and hardware simulation platform alignment test, to the test data in Matlab simulation analysis, verification system is in accordance with the technical indexes requirements.