Attaining high operating bandwidth using sensor arrays and frequency domain methods

Abstract

Proposed in this paper is the design of sensor arrays using low pass-band sensors (sensors with low but different bandwidth) to attain a high operating bandwidth. In certain control applications, it is necessary that a high bandwidth sensor be used to improve the efficiency of feedback. The design of a single sensor with the desired high bandwidth may not be easy and economically feasible. To better tackle this situation, we propose a new approach, which recommends the implementation of an array of low pass-band sensors in place of a single sensor of high bandwidth. We show that the idea of sensor arrays can be utilized to obtain a cost effective and efficient solution to the problem posed. The proposed sensor array that consists of multiple sensors with possible overlapping operating regions requires that an effective fusion technique be used to unite multi-sensor data. A multi-sensor data fusion scheme using Frequency Response Methods is developed to facilitate the implementation of proposed sensor arrays.