TY - GEN
T1 - Identification of radio signal pulse modulation characteristics
AU - Ji, Zhenyuan
AU - Wang, Wei
AU - Liu, Chunguang
PY - 2012
Y1 - 2012
N2 - In the electronic reconnaissance, the identification of radio signal pulse modulation characteristics has vital significance. Firstly, this paper adopts short time fourier transform (STFT) method to analyse the pulse modulation feature of four typical radio reconnaissance signals: linear FM signal (LFM), Tangent FM signal, binary phase coded signal (BPSK), four-phase encoded signal (QPSK). By comparing the time-frenquency curves, the FM signals and the phase modulation signals could be identified. Secondly, wigner-hough transform is used to identify LFM signal and Tangent FM signal according to their different pulse modulation characteristics. Lastly, the identification of BPSK signal and QPSK signal is achieved by extracting the N-th instantaneous frequencies difference. The experimental results show that time-frequency analysis methods that were used in the identification of signal modulation characteristics is feasible and have better noise immunity.
AB - In the electronic reconnaissance, the identification of radio signal pulse modulation characteristics has vital significance. Firstly, this paper adopts short time fourier transform (STFT) method to analyse the pulse modulation feature of four typical radio reconnaissance signals: linear FM signal (LFM), Tangent FM signal, binary phase coded signal (BPSK), four-phase encoded signal (QPSK). By comparing the time-frenquency curves, the FM signals and the phase modulation signals could be identified. Secondly, wigner-hough transform is used to identify LFM signal and Tangent FM signal according to their different pulse modulation characteristics. Lastly, the identification of BPSK signal and QPSK signal is achieved by extracting the N-th instantaneous frequencies difference. The experimental results show that time-frequency analysis methods that were used in the identification of signal modulation characteristics is feasible and have better noise immunity.
KW - instantaneous frequency
KW - radio signal
KW - short time fourier transform
KW - wigner-hough transform
UR - https://www.scopus.com/pages/publications/84876485538
U2 - 10.1109/ICoSP.2012.6491953
DO - 10.1109/ICoSP.2012.6491953
M3 - 会议稿件
AN - SCOPUS:84876485538
SN - 9781467321945
T3 - International Conference on Signal Processing Proceedings, ICSP
SP - 1910
EP - 1913
BT - ICSP 2012 - 2012 11th International Conference on Signal Processing, Proceedings
T2 - 2012 11th International Conference on Signal Processing, ICSP 2012
Y2 - 21 October 2012 through 25 October 2012
ER -