Robust Tracking Time-Varying High-Frequency CW Telegraph Signal

Abstract:

Continuous wave (CW) telegraph is a crucial communication means for high-frequency tactical communication. But there is serious frequency deviation and impulsive noise in High-frequency channel, thus the conventional tracking method based on Gaussian noise assumption may lose the track of time-varying CW signal. A new robust kalman filter-based tracker is proposed in this paper to extract the time-varying CW signal in presence of impulsive interference, which uses a nonlinear statistical model. Simulation studies show this method can dynamically track nonstationary CW signal and effectively suppress burst impulse noise.

• Periodical: Applied Mechanics and Materials (Volumes 155-156)
• Pages: 435-439
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.155-156.435
• Online since: February 2012
• Authors: Guo Jun Li, Xiao Na Zhou, Nai Qian Liu, Shao Hua Li
• Keywords: High-Frequency Communication, Kalman Filter (KF), M-Estimation, Morse Code, Signal Tracking

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