"Specific Emitter Identification_FM"

"We have collected a large number of signals emitted by radio stations, and different radio stations are considered as different radiation sources. From April 25 to May 5, 2022, and May 24 to 27, 2022, AD signals from 16 radio stations were collected, and a random time period was chosen for each day to collect signals from all 16 radio stations, and the data from these 15 days was used as the total data set. All radio stations are FM radio stations, and the signals received are baseband. The data preprocessing process consists of two steps: 1. Pass the samples through a low-pass filter with a cutoff frequency of 200k. 2. Normalize the samples to a mean of zero. Because the collected signals are all collected under actual conditions, the SNR of each signal sample is a random value. Each sample has 8192 sampling points with a sampling rate of 1MHz, and the data for the training set, validation set and test set were obtained randomly according to the ratio of 8:1:1 division."