BeiDou Satellite Navigation Terminal Effectiveness Evaluation Based on Cloud Theory

With the continuous development of the Beidou satellite navigation system, the Beidou satellite navigation terminal has been transformed from “bus slot + board card” to modularized and chip-based. Its functions, performance and practicability have been continuously improved, and it has been more and more widely used in military and civil fields. The effectiveness evaluation of the Beidou navigation terminal can accurately grasp the capabilities of the equipment in the process of use, and can provide an important basis for the design demonstration, appraisal and finalization of Beidou navigation terminal equipment. Effectiveness evaluation indicator system for BeiDou equipment is constructed based on the function of the equipment, and index weights are calculated through AHP method. Considering the randomness and uncertainty of the BeiDou equipment effectiveness evaluation, an integrated evaluation method which feasibility is studied by an example, is given using backward cloud and integrated cloud. The evaluation example and result analysis show that this method combining qualitative and quantitative analysis, is not only reduces the subjective factors in the evaluation, but also gets overall and visualized evaluation results, which provides a new way for effectiveness evaluation of BeiDou user equipment.