一种非理想信道条件下双传感器检测系统的融合算法研究

Research on Fusion Algorithm for a Kind of Two-sensor Distributed Detection System with Non-ideal Communication Channel

研究一种非理想信道条件下检测融合系统的性能优化问题。融合系统由两部传感器构成,系统配置结构采用串行结构。为了使系统检测性能达到最优,需要对两部传感器的判决规则进行联合最优化。在非理想信道条件下,推导了两部传感器的最优判决规则,并给出了求解最优判决规则的数值迭代算法。仿真结果表明,采用该融合算法对系统性能进行优化,可明显提高融合系统的检测性能。

In this paper, we consider the optimal fusion algorithm for a distributed detection system under the condition of non - ideal communication channel. The distributed detection system is consisted of two sensors, and the sensors are arranged in serial structure. In order to optimize the system performance, the decision rules of the two sensors must be optimized jointly. The necessary conditions for optimal sensor decision rules are derived, and a numerical algorithm is designed for finding the optimal sensor decision rules. Simulation result shows that using this optimal fusion algorithm, the system performance can be improved significantly.