Research On The EMC Optimal Design Of The Spaceflight Optics Remote Sensors

Under the circumstance of aerospace technology applications, this paper, based on the electronic structure of spaceflight optics remote sensors, constructs the strategies that can be applied in EMC analysis, measurement and optimal design through using the EMC theories and methods, adopts mode analysis in studying the EMC issues, analyzes the electromagnetic interference source, transmission routes and sensing device in detail, and solves the problems existing in the EMC system of spaceflight optics remote sensors.First of all, this paper analyzes the situation of electromagnetic interference entering the system interior circuit by means of conducting wires and coupled ways, sets up the corresponding matrix research model, analyzes the effect of wire and cable parameter on EMC, and provides corresponding solving strategies.Secondly, this paper establishes the spaceflight optics remote sensors radiated interference pre-estimating analysis model and analyzing the models of cable, signal loop and electromagnetic field, and it puts forward device combination analytical method, which has solved the estimate problems in related fields.Thirdly, aimed at the model analysis of EMC, this paper expounds the optimization methods of EMC hardware design, analyzes shields, filtering and ground connection technologies, carries on immunity test and adopts corresponding wavelength measures so as to achieve the ideal results. Meanwhile, directing at the EMC measurement in aerospace domain, this paper also establishes EMC-specialized measurement model, including eligibility measurement and fault analysis, and sets up conducted susceptibility and radiation sensitivity measurement model, which has laid foundation for the EMC measurement of spaceflight optics remote sensors as well as provided the measuring basis and methods.Lastly, this paper carries on a series of EMC test on the spaceflight optics remote sensors, and obtains the corresponding data and curves. And the experimental result proves that the EMC analysis and optimal design method adopted in this paper has obtained the expected effect and achieved the spaceflight optics remote sensors EMC optimal design.