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分析了交替分离(AS)算法与交替投影(AP)算法的一些性质.根据这些分析结果,提出了将交替分离与交替投影算法有机结合形成所谓ASAP算法,以克服交替分离算法收敛速度较慢而交替投影算法又易于陷入最大似然代价函数的局部极值的缺陷.分析了这种结合的逻辑合理性.计算机仿真也验证了ASAP算法能够以较少的迭代次数得到信号参数较理想的估计.
Based on these analysis results, it is proposed to combine the alternative separation and the alternative projection algorithm to form the so-called ASAP algorithm so as to overcome the shortcomings of the alternating separation algorithm such as convergence rate The alternation projection algorithm is also apt to fall into the local extremum of maximum likelihood cost function. The logical rationality of this combination is analyzed. Computer simulation also proves that ASAP algorithm can obtain a better estimation of signal parameters with fewer iterations.