Double window spectrogram difference method: A blind estimation of frequency-hopping signal for battlefield communication environment
Yun He, Su Yang, Yuan Chen, Yao Yu, Xiaolong Yang · 2018
In the area of battlefield communication, blindly hopping period and hopping frequency estimation from a series of noisy frequency-hopping (FH) signals is an important research topic. With the use of short-time Fourier transform, an accurate jointly hopping period and hopping frequency estimator, namely, double window spectrogram difference (DWSD), is developed. Simulation results are included to demonstrate the low complexity and superiority of the developed method over several conventional parameter estimators.