1. S chool ofPhysical Science and Techno logy, Nan jing Norm alU n ivers ity, Jiangsu Nan jing, 210097, Ch ina; 2. School of E lectrical andA utom ation Engin eering, Nan jing Norma lU n ivers ity, Jiangsu Nan jing 210042, Ch ina
The paper introduces the basic pr inc iple of the laser targe t practice system, and specifica lly illustra tes the w ho le design of dev ice from hardware and so ftw are aspects. The system uses coding and decod ing o f inform ation to realize the sepa ration between the targ et and the gun. Name ly, it uses dig ita l pulse codingm e thod tom odulate the signa l o f contro l system, and send ou t a series of light pu lses loaded w ith inform a tion. By them edium o f air and po lym er optical fibe r, an array of photoe lectric d iodes conve rt optica l signa ls rece ived in scann ing process and decod ing process into e lectr ic signals. Am plified and adjusted, the e lectric s igna l is sent to S ing le ChipM ic rocom puter to judge and process. IC ca rd is used to exchange the data between the targe t system and the com pute rwhere the data w ill be further pro cessed. In add ition, the paper ana lyzes such param eters as atmo spheric attenuation coeffic ient, the am pl-i fied ab ility of amp lifier and rece iv ing sensib ility o f pho to electr ic d iode to set up am athem aticm ode l o f the pho toe lectr ic system. By using it, we can know c lear ly the in fluences each pa rame ter has on the en tire system s’ perform ance, relationsh ip among each other, and can calcu late the shoo ing distancewh ich is realized in som e g iven cond itions, thus prov iding a theoretical bas is of farther im prov ing and optim izing the entire system.