Design And Implementation Of Communication System Used For Underwater Robot

In the 21 st century today,all types of the underwater vehicle technology is widely used in more and more fields.The research of the underwater acoustic communication system of the underwater vehicle communication system has become a pop research field.Based on the style of cable communication on the underwater vehicle,the paper completes the design and implement of underwater acoustic communication system based on STM32,and tests the function of the system.The main contents and work of this paper are as follows:Firstly,make a summary of the research status of topics related content,investigate signal design and signal process method in the underwater acoustic communication subsystem,analysis the principle of the pattern time-delay coding and its simulation,introduce the theory of communication system reliability analysis.The mainly underwater acoustic communication system design scheme is completed.Secondly,complete the design of hardware circuit board,the system controls the data acquisition module,analog-to-digital conversion module,and the realize of automatic gain through the series chip of STM32F407 which has the frequency of 168 MHz and low power consumption including the chip selection and circuit design process of digital signal processing circuit,signal conditioning circuit,linear power amplifier circuit,differential transmit-receive circuit.And the software realization use C language to complete the signal detection,response control and signal decoding module in the Keil uVision4 integrated development environment.Finally,the reliability analysis process of the communication system is introduced in detail and the verification results,the laboratory simulation test of the communication system and the results of the experiments in the pool and real environment,given in order to verify the function of the underwater acoustic communication system,shows that the expected goals are basically achieved.