Arbitrary-dimensional frequency estimation of complex sinusoid signals

The problem of increasing computation in pace with the growth of dimension is discussed for arbitrary-dimensional frequency estimation of complex sinusoid signals. The conception of matrix core, the form of which doesn't change with dimension, is put forward. The deduced estimation formula shows that a N-dimensional frequency estimation could be obtained by N one-dimensional calculations. Obviously, while dimension increases, this method could reduce much computation. Zhang Zhan: born in 1971. Ph. D graduate student