Multi-Parameter Estimation of Wide-Band Coherent Signals in Colored Noise
Gang Du, Xinying Jiang · Signal Processing · 2009
Based on nonuniform L-shaped array and fourth-order cumulant,the paper presents a new method,i.e.CTSS algorithm, for joint estimation of frequency,2-D arrival angles and polarization of coherent signals over a wide frequency band.In colored Gaussian noises,the algorithm can precisely estimate multidimensional parameters of coherent signals with same digital frequency.It doesn't need the multidimensional spectrum peak search with multidimensional parameters paired automatically.In addition,based on CTSS algorithm and the characteristic of the L-shaped array,multidimensional parameter estimation of coherent signals with the same frequency is realized successfully by a separable method.Computer simulation confirms its effectiveness.