Research On Active Computing Service Technology For Atmospheric Transmission Effect Of Virtual Test Photoelectric Signal

Photoelectric signals in virtual experiments refer to laser and radar signals.The intensity of these signals will attenuate when they are transmitted in the atmosphere.This phenomenon is called signal transmission effect.Effect computing service is to provide corresponding computing support for transmission effect phenomenon in virtual test site.Nowadays,the non-active calculation service of atmospheric transmission effect of signals adopts various entities and environmental models in the experimental space to establish fixed interactive correlation in accordance with the pre-conceived way.Various entities entering the environmental impact space dynamically can not apply the environmental model,and the multi-reflected signals can not automatically calculate the environmental effects.This way can no longer meet the future application.Therefore,the effect is put forward.Active Computing Service Method.Active effect computing service is a service that can actively establish dynamic correlation between signal-environment-target entities in virtual test site and provide dynamic effect computing information support for them.Firstly,the service method of active calculation of effect is studied: analyzing the characteristics of photoelectric signals and describing them regularly,and putting forward two kinds of active recognition methods of region and node,which can realize the signal recognition of designated virtual imaginary region or designated computing node;analyzing and confirming the entity set of receivable photoelectric signals based on the principle of photoelectric signal detection;The transmission effect calculation method in complex environment can calculate the environment path between the signal source location and the receiving entity location,and select the appropriate model to calculate the effect.The result push method based on the middleware message transmission mechanism is studied.Secondly,on the basis of the research content,using object-oriented method,we design the active computing service component,analyze the requirements of the component,design the static model,dynamic model and interface of the component,and complete the unit test.In order to validate the transmission effect active computing service technology,an effective service scenario was designed and developed to build related test components as test resources.Finally,the application verification system is constructed by using the developed components,and the verification scheme is proposed.The verification process is described and the verification results are analyzed.The validation results show that the active service method of optoelectronic signal studied is effective.The active service module of optoelectronic signal developed can realize the function of active service of optoelectronic signal and meet the application requirements.