Detection of number of sources via exploitation of non-circular property
Chundi Zheng, Feng Da-zheng · Journal of Xidian University · 2006
We present in this paper a new numberof-sources-detecting algorithm for non-circular sources.In the proposed method,due to the non-circularity characteristics of the sources,we can employ the conjugate measurements and unitary transformation in the covariance matrix,and as a result the sensors and snapshots are doubled.It is shown that the new method can handle more sources than the MDL,and that it has a better angular resolution.In addition,the rate of convergence of the proposed method is faster than that of conventional algorithms.