Bozena Kunka

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Military University of Technology Faculty of
Electronic Institute of Telecommunication
The Application of Neural Networks in Radar
Signals Recognition

• Bozena Kunka
• Tutor dr inz.. Jan Matuszewski

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Neural Networks - application

• Construction of a arificial neuron bases on
  biological nerve cell

• Issues of recognition are currently the most
  often used of neural networks application

• 1g
• Applying the neural networks in radioelectronics
  gives enormous possibilities of real-time
  information processing

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McCulloch-Pitts Neuron Model
The Application of Neural Networks in Radar
Signals Recognition
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Neuron activation functions

• linear function

• sigmoidal function

• step function

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The Application of Neural Networks in Radar
Signals Recognition
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Multilayer Perceptron
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The Application of Neural Networks in Radar
Signals Recognition
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Learning the Neural Networks

• with a teacher

• basing on the learning set the network learns
  the proper operation

• without a teacher

• applied when the network responses are not
  known

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The Application of Neural Networks in Radar
Signals Recognition
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Minimum Distance Method Of Signal Recognition
- radiation source class
- measure vector
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The Application of Neural Networks in Radar
Signals Recognition
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Neural Network and Classic Method Of Signal
Recognition

• the quantity of klass L10

• the quantity of parametres L10

• standard deviation

• The quantity of realizations for each class n100

NEURAL NETWORK - THREE-LAYER PERCEPTRON -
10 SUBNETWORKS
CLASSIC METHOD - MINIMUM DISTANCE
CLASSIFIER
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The Application of Neural Networks in Radar
Signals Recognition
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Number Of Correct Classifications
N.N. Neural Network
ST.R. Minimum Distance Method
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The Application of Neural Networks in Radar
Signals Recognition
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Probability Of Correct Classification

• CLASSIC METHOD

• NEURAL NETWORK

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The Application of Neural Networks in Radar
Signals Recognition
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Summary

• Use of neural networks instead of classic method
  for radar signals recognition is more effective

• Modular network structure makes its development
  quick and easy

• Application of the neural networks
• - promising

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The Application of Neural Networks in Radar
Signals Recognition
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Thank you for attention
Bozena Kunka
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The Application of Neural Networks in Radar
Signals Recognition