The Software And Hardware Development Of Ultra Short Baseline Positioning System

The Ultra Short Base Line positioning system is mainly used in the field of underwater acoustic positioning,it can realize Localization and tracking of underwater target,it has a lot of A/D vantages,size is small,easy to install,so it has a very wide range of applications in the submarine,it can assist the submarine to completion the work.This system is mainly composed of the receiving array,the signal conditioning circuit and a DSP processor.This paper mainly discusses the designing and realization of software and hardware of Ultra Short Baseline Line positioning system.In the hardware,it completed designing and debugging of the signal conditioning circuit.In order to meet the technical index and performance requirements of the system,I considered the key points of this circuit in the designing,including,selecting the chip and designing of circuit.In the digital circuit,I designed the DSP processor,including,the External storage space and external A/D module.At the same time,Using the MATLAB to do a lot of simulation computation,Including: the simulation algorithm and the interference noise on the Ultra short baseline positioning accuracy.The paper also gives a special case in the non synchronization,the phase difference between the signal-to-noise ratio of the simulation curve.Finally,I completed the hardware and software of the Ultra Short Base Line positioning system,and I also did a lot of debugging in the Laboratory and testing in the pool.We have completed the calibration of the Ultra Short Base Line positioning system array.During the experiment,I found some factors that affect the accuracy of the Ultra short baseline positioning system.At last I find the way to solve these problems,and the positioning function of the Ultra short baseline positioning system is realized.I also analyzed that some factors that affect the accuracy of the Ultra short baseline positioning system In different depth.Through the experiment,the system can meet the requirements,and the system operated stably,and it has a good performance in the experiment.