提出一种联合循环平稳法与多普勒模糊数搜索法的多分量Chirp信号相位参数精确估计算法，与已有循环平稳算法相比，该算法的相位参数取值范围不受限，低信噪比下的相位参 数估计精度约提高30 dB-Smooth fuzzy numbers and Doppler search method for multi-component the Chirp signal phase parameters the precise estimation algorithm, compared with exis