Embedded Signal Processing Module for Online Filtering in High-Event Rate Conditions

Abstract

Online event detection (filtering) is required in communications, industry, and electronic instrumentation systems, which may involve sequential decision levels. In some cases, the decision to reject or accept an event relies on the fusion of different measured data. This work describes an embedded solution implemented on a field-programmable gate array (FPGA), capable of combining information from two different sources to support decision-making. A matched filter discriminator is employed to identify signatures of interest. The main focus is on digital data control, packaging module design, and the implementation and optimization of the matched filter module in terms of FPGA resource utilization. The proposed digital electronic system is presented, and simulation results are used to validate the design.