Target Detection,Location And Tracking Based On Acoustic Detection Field

Target Detection,Location and Tracking Based on Acoustic Detection Field(TDLAT)Is the use of ground passive acoustic detection sensor for low-altitude field to build acoustic detection field in order to achieve low-altitude sound target detection range in the detection range,positioning and tracking.At present,the air target detection tracking is mainly used in radar detection and video surveillance.However,due to the multipath effect,the radar in the low-altitude field of detection on the serious limitations,even more we can't find the target.And for video surveillance is subject to resolution,low detection range,small target identification and anti-camouflage ability and other reasons makes low-altitude monitoring is often unsatisfactory.Therefore,the work of this paper mainly for radar and video monitoring defects proposed sound target detection,positioning and tracking technology combined with the theory and the actual situation to achieve a complete set of systems.In this paper,we focus on the construction of low-altitude acoustic detection field with acoustic sensor array,and study a variety of target positioning and tracking algorithms to realize the application of sound target detection,location and tracking.Among them,in the sound target detection,we development and realization of the acoustic signal line spectrum detection,and on the base of that,we use the line spectrum enhancement,airspace filtering on the acoustic signal pre-processing;In the aspect of target direction,we have develop a way to estimation the direction of sound.In the aspect of target location,we have realized the least squares algorithm.In the aspect of target tracking we have implemented Kalman filter(KF)estimation algorithm,extended Kalman filter(EKF)target estimation algorithm and a joint probability data association algorithm(JPDA)to suitable for this system.All algorithms have validated their feasibility by field experiment data.The whole system chooses VS 2010 as thedevelopment environment.The developed software platform to achieve the experimental sound signal data collection and experimental site parameters to manage,including the set,revoke,storage,modify,delete and other operations.In the display aspect,we use OpenGL library to make the track visual.What's more the system also developed a data simulation and analysis platform,which can be used to simulate the data and data analysis,to achieve the experimental process of playback and data processing.The program finally developed a target detection,positioning and tracking platform with the acoustic array,which is contained in database,feature library and algorithm library.