Efficient estimation and tracking of response statistics for (randomly) time-variant systems
Lang Peng · 2014
Time-variant systems are often encountered in engineering applications, ranging from underwater acoustic communications to array processing. The inability of conventional (i.e., stationary-based) system identification techniques to cope with rapid time variation of the system's impulse response has motivated the development of novel approaches to identify linear, arbitrarily time-variant systems. Most of these techniques rely on a known statistical characterization of the time-variation of the system's response.