Quantitative analysis of classification results for short gate of 1 m (a) and longer gate of 15 m (b) around a range distance of 50 m. Whereas the test accuracy is nearly 100% for the short gate down to a compression ratio of 0.5%, it never exceeds 90% for the longer gate, even if the compression ratio is set to one. Nevertheless, the test accuracy only starts decreasing for a compression ratio of 0.5% for the longer gate as well.