Design And Implementation Of A Multi-sensor-based Artillery Position Reconnaissance System

Nowadays,whether it is border frictions,low-intensity local conflicts,or even medium-scale border wars,artillery will appear.Artillery plays an irreplaceable role in modern warfare.Quickly discovering the enemy's projectiles and locating the enemy's launching weapon positions is the primary link in anti-artillery operations.How to quickly find projectile targets in a complex battlefield environment has also become an important research content of the artillery reconnaissance radar.This thesis takes a battlefield multi-sensor weapon positioning system as the project background,and designs a multi-sensor gun position reconnaissance system.First of all,in order to solve the problem of excessive loss of early warning time and poor silence ability of traditional gun location reconnaissance radars,in view of the high temperature and heat characteristics of projectile targets at the moment of exit,this paper chooses to combine infrared sensors and phased array radars,and proposes A working method for infrared detection of targets and triggering radar confirmation and tracking,which takes into account the advantages of high-precision angle measurement of the infrared system and the advantages of high-precision ranging and speed measurement of the radar system,realizing rapid discovery and positioning of projectile targets,while ensuring Short warning time and strong battlefield silence ability.Then the overall design of the radar sub-system was carried out,including working mode design,radar waveform design,and multi-sensor beam arrangement design for projectile targets.The feasibility of the design was verified by field experiments.Then,the key technology in signal processing was researched,focusing on the simulation analysis and comparison of moving target display,moving target detection,constant false alarm detection and fine Doppler estimation methods.Then,focusing on the engineering application of the actual radar system,the design and implementation of the radar signal processing subsystem was completed.According to the demand,the realization platform of the signal processor was selected,and the design and realization of the key technology of signal processing was completed on this platform,and the corresponding design and realization of the communication module in the signal processing subsystem was carried out.Finally,an outfield simulation experiment was carried out on the multi-sensor-based gun position reconnaissance system,and multiple tests were carried out on different shooting angles to verify the performance of the overall system.Experimental results show that the system can meet the target requirements,the detection range of individual rocket launchers and other projectile targets is up to 10 km,the positioning response time is about 720 ms,and the positioning error is about 50 m.It shows that the multi-sensor-based gun position reconnaissance system studied in this paper has good performance and certain application prospects.