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Radar Signal Processor for High-Resolution Target Detection
http://doi.org/10.5626/JOK.2022.49.5.369
Recently, as the technology of multi-function radar is developed, the radar deception technology of ballistic missiles is also developing. For some ballistic missiles, the propellant explodes in the air after the stage is separated, causing the warhead and many fragments to fly together, which lowers the multi-function radar’s ability to engage ballistic missiles. Thus, there is a need for a radar system capable of operating a broadband waveform to intercept a warhead, by quickly discriminating between a high-speed warhead and fragments while retaining the existing target detection/tracking function. It is possible to find and intercept warhead among fragments by extracting the length of a target, using a broadband waveform and performing warhead classification using this. In this paper, we describe the process of performing the target detection/tracking function using a narrowband waveform such as doppler processing, pulse compression, threshold processing, and target processing and high-resolution target length extraction and phase diffraction correction for accurate length extraction using a wideband waveform to create a radar system that satisfies these requirements. Also, it shows the results of designing and implementing these functions with signal processing software and performing tests.
Component-based Software Architecture Design Method for Defense Software
Sungwon Lee, Jonghwan Shin, Taehyung Kim
http://doi.org/10.5626/JOK.2019.46.11.1113
Component-based software engineering is widely used in a variety of embedded software developments. However, most methodologies for component-based software engineering have certain limitations in coping with the software configuration structure governed by Korean regulations for weapon system software development. The software configuration structure by rule assumes that the software development is based on object-oriented language and tries to present different perspectives in one diagram. In this paper, we propose a component-based software architecture design method for defense software that can be used in software development with non-object-oriented language. Further, the proposal aims to compose a software configuration structure and desired documentation products such as diagrams through a design process. To help comprehend each step of the proposed design method, real samples of ongoing projects are presented.
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