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An Algorithm for the Fine Estimation of Polynomial-Phase Signals

机译:多项式相位信号的精细估计算法

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摘要

To precisely estimate the parameters of polynomial-phase signals (PPSs), we adopt a recently-proposed algorithm for sinusoid frequency estimation. The algorithm is combined with the Wigner distribution to estimate the instantaneous frequency of linear FM signals and with the high-order ambiguity function to estimate parameters of higher order PPSs. Both Gaussian and non-Gaussian noises are considered in simulations, which show that the algorithm converges within two iterations and approach achievable limits for the considered techniques.
机译:为了精确估计多项式相位信号(PPS)的参数,我们采用了最近提出的正弦频率估计算法。该算法与Wigner分布相结合以估计线性FM信号的瞬时频率,并与高阶模糊函数相结合来估计高阶PPS的参数。仿真中同时考虑了高斯噪声和非高斯噪声,这表明算法在两次迭代内收敛,并为所考虑的技术逼近了可达到的极限。

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