This work proposed a method for estimating the parameters of multiple received frequency-hopping (FH) signals without any a priori knowledge. First the unknown signals were separated by joint approximate diagonalisation of eigen-matrices (JADE) algorithm. Then the method used the smoothed pseudo Wigner-Ville distribution (SPWVD) of each separated FH signal to estimate its transmission parameters such as hop duration, time-offset and hopping frequency pattern. By using multiple overlapped SPWVD windows, the ...