Implementation Of Data Processing Algorithm And Terminal Design Of UAV Monitoring Radar Based On VxWorks

Phased Array Radar has a strong beam-changing ability,and its working parameters are controllable.It occupies an important position in the field of UAV monitoring.However,in current radar data processing,the research on UAV detection,tracking algorithm and beam scheduling algorithm is not sufficient.Aiming at the low flying height,small volume,slow speed and high maneuverability of UAV,the main motivation of this paper is to enhance the target tracking accuracy and system scheduling performance by selecting and improving the above algorithms,and realize them in practical engineering.The following work has been accomplished:1.Selection and improvement of data processing algorithm for phased array radar.Aiming at the problem of target loss when UAV hovers,the details of track initiation algorithm are improved in coordination with the signal processing scheme,mainly in the MTD step.Through simulation experiments,the tracking filtering algorithm,which is suitable for maneuvering targets,has been selected.Compared with Kalman filtering scheme,particle filtering scheme is chosen as a more suitable real-time filtering scheme for UAV monitoring.2.On the basis of the above research,the engineering realization of data processing algorithm is completed.PowerPC development board is used to carry VxWorks 6.8 operating system.The multi-task scheduling mechanism and the processing flow of each mode are introduced in detail.Aiming at the problem of antenna nonlinearity in the field test,this paper proposes the method for the compensation.This approach is clear and easy to implement,which effectively reduces the errors caused by antenna nonlinearity and improves the tracking accuracy of radar.3.Terminal software.The terminal is developed by VS2012 platform,which has basic functions such as track display,network communication,field data storage and playback.In addition,the details and features of double-buffer mapping,real-world map,multi-thread synchronization are discussed briefly as well.The software design of radar terminal running in Windows 7 environment is realized.