Online Sequential Extreme Learning Machine-Based Active Interference Activity Prediction for Cognitive Radar
نویسندگان
چکیده
For anti-active-interference-oriented cognitive radar systems, the mismatch between acquired and actual interference information may result in serious degradation of anti-active-interference performance. To yield more effective knowledge electromagnetic environment eliminate effect, activity prediction technique, which deduces future behaviors based on current observations, has received increasing attention. However, high computational complexities limit application conventional methods dynamic active with real-time requirements. In this paper, online sequential extreme learning machine (OS-ELM)-based method, is dedicated to high-efficiency prediction, proposed. The advancement includes two aspects. First, benefiting from single-hidden-layer network structure recursive-formula-based output weight updating, proposed OS-ELM-based frequency (OS-ELM-FP) angle (OS-ELM-AP) models can predict state update model parameters much higher efficiency. Second, better generalization performance enables method achieve smaller errors compared methods. Numerical examples results measured jamming data demonstrate advantages method.
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2022
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs14122737