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In this paper, the specular reflection multipath model is discussed in detail. The conception of the product factor, which is based on the relationship between the direct signal and indirect signal in the meter-wave radar received signals, is presented in this paper. A simple function of the product factor and the signal arrival angles including the direct angle and indirect angle considering the...
A new algorithm for the optimal pattern synthesis of arbitrary arrays with prescribed broad nulls is presented, this method is similarly to the quadratic beampattern constrains method. The approach is to assume that the given array elements are used as elements of an adaptive array, with the adaptive beamforming theory, angles of interferences can be obtained, the null width and gain is controlled...
The present algorithms on 2-D temporal-spatial spectrum estimation are deteriorated when the number of signals become close to the dimension of the array. The expenses of the hardware and the software have to be increased to alleviate this degradation. In this paper, a kind of new signal model and approach for 2-D temporal-spatial spectrum estimation is proposed. Through the temporal projection, the...
A new simple adaptive beamforming method is proposed for the coherent environment in this paper. With the new method, the eigenvector, corresponding to the combination of the desired signal and the coherent interferences, is estimated. Then, the components of the desired signal and the coherent interferences in the covariance matrix are subtracted in the eigen-sense. Finally, adaptive beamforming...
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