Performance Analysis for Strong Interference Remove of Fast Moving Target in Linear Array Antenna

This paper presents the performance analysis of direction of arrival estimation algorithm modified MUSIC algorithm. We present the description, comparison and the performance and high resolution analyses of these algorithms. The estimator is based upon a linear algebraic connection between the standard subspace model of the array correlation matrix and a special signal interference model. It is not a subspace weighted MUSIC because the scaling depends on the eigen-structure of the estimated signal subspace. Modified MUSIC algorithm has the advantage for simultaneously estimating the DOA and the power of each source. Estimate of the sampled channel impulse response is derived by use of the channel symbols. The channel response samples are separately processed to recover the DOA of the relative paths. Through simulation, we compare the DOA estimator with the modified MUSIC algorithm, based on these representations. Numerical results demonstrate the superior performance of modified MUSIC relative to general MUSIC and the validity of the results.