求“黄金开天”装备图片！

With the development of science and technology, now in many areas of need to know the exact direction of useful signal, the frequency of parameters, the precise measurement of the signal to put a very high demand. Spectrum space technology in many areas has been widely used, and array signal processing plays a very important role.
Often, the signal space is measured up to one direction Wei Boda (DOA) estimates. In practical applications, often at the same time to signal the number of parameters of the estimates, such as signal DOA, pitch angle and frequency. This paper first introduced for the two-dimensional space spectrum of the estimated MUSIC algorithm, ESPRIT algorithm for the basic idea and principle of algorithm, and then focus on the two algorithms based on the position - two-dimensional frequency spectrum estimation. Then this paper were used MATLAB language MUSIC algorithm and ESRPIT algorithm estimated two-dimensional and computer simulation results are analyzed and