Title :
2-dimentional DOA estimation using ESPRIT algorithm in ARM confronting coherent decoy
Author :
Zou, Jianbin ; Gao, Kai ; Zhang, Eryang
Author_Institution :
Inst. of Electron. Sci. & Technol., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
Because of the intrinsic defect of passive radar seeker (PRS) of ARM, it can´t distinguish coherent decoys from far distance. Using extended-aperture confronting coherent decoys for ARM is proposed in this paper, and a new 2-dimentional DOA estimation ESPRIT algorithm is presented. This algorithm uses the characteristic of a new special array to construct a special covariance matrix. With this algorithm the DOA of coherent decoys can be estimated without spatial smoothing techniques and spectrum peak searching. Elevation and azimuth estimations can also be paired automatically. Simulations demonstrate the effectively to distinguish radar and bait from the directions of arrival and the significant performance gain realizable by this method for ARM confronting coherent decoys.
Keywords :
array signal processing; covariance matrices; direction-of-arrival estimation; missiles; passive radar; 2-dimensional DOA estimation; ARM; ESPRIT algorithm; anti-radiation missile; azimuth estimation; coherent decoy; covariance matrix; elevation estimation; intrinsic defect; passive radar seeker; spectrum peak searching; Direction of arrival estimation; Radar; 2-dimentional (2-D); ARM (anti-radiation missile); Array signal processing; DOA (direction of arrival); ESPRIT;
Conference_Titel :
Future Information Technology and Management Engineering (FITME), 2010 International Conference on
Conference_Location :
Changzhou
Print_ISBN :
978-1-4244-9087-5
DOI :
10.1109/FITME.2010.5655831
