Title :
Radar signal categorization using a neural network
Author :
Anderson, James A. ; Gately, Michael T. ; Penz, P. Andrew ; Collins, Dean R.
Author_Institution :
Dept. of Cognitive & Linguistic Sci., Brown Univ., Providence, RI, USA
fDate :
10/1/1990 12:00:00 AM
Abstract :
Neural networks are used to analyze a complex simulated radar environment which contains noisy radar pulses generated by many different emitters. The neural network used is an energy-minimizing network. The limiting process contains the state vector within a set of limits, and this model is called the brain state in a box, or BSB model, which forms energy minima (attractors in the network dynamical system) based on learned input data. The system first determines how many emitters are present (the deinterleaving problem). Pulses from individual simulated emitters give rise to separate stable attractors in the network. Once individual emitters are characterized, it is possible to tentatively identify them based on their observed parameters. As a test of this idea, a neural network was used to form a small database that could potentially make emitter identification. There were three errors of classification. The number of iterations are required to reach an attractor state was very long, and some of the final states were not fully limited. These factors indicate the uncertainty of the neural network
Keywords :
computerised pattern recognition; computerised signal processing; neural nets; radar cross-sections; radar theory; telecommunications computing; BSB model; attractors; brain state in a box; emitter identification; energy-minimizing network; neural network; radar signal categorization; state vector; Analytical models; Biological neural networks; Brain modeling; Databases; Neural networks; Noise generators; Pulse generation; Radar; Testing; Working environment noise;
Journal_Title :
Proceedings of the IEEE