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通过比较梯度格型快速自适应算法和最大熵谱估计算法的优缺点，结合工程实际应用，给出了一种适合于快速处理的谱估计方法，使谱估计的运算量提高约一倍。
By comparing the advantages and disadvantages of the fast adaptive algorithm of gradient lattice and the maximum entropy spectrum estimation algorithm, a spectral estimation method suitable for fast processing is proposed based on the practical application of the algorithm. The computational complexity of spectral estimation can be doubled.