Real radar returns from four small scale commercial aircraft models are used to train and test a convolutional neural network target recognition system. Many target recognition systems convert the one dimensional stepped-frequency features into two-dimensional using tools such as spectrograms and scalograms, and thereby utilize a two-dimensional CNN. In this paper, a one-dimensional convolutional neural net is used. The unknown target's azimuth position may be known completely or within a certain range. The recognition performance is compared with that of an optimal Bayesian classifier assuming complete statistical knowledge. A discussion of the advantages and disadvantages of using 1D-CNN is presented.
Title
Stepped frequency radar target recognition using 1D-CNN