基于多滞后高阶模糊函数的双曲调频与多项式混合相位信号参数估计

Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136) Pub Date : 1997-11-02 DOI:10.1109/ACSSC.1997.680178

F. Gini, G. Giannakis

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引用次数: 17

摘要

研究了多项式相位信号(PPS)和双曲调频信号(FM)组合的参数估计问题。提出了一种利用多滞后高阶模糊函数(ml-HAF)的特性将调频参数估计与PPS参数估计解耦的新方法。利用Cramer-Rao下界，研究了混合FM-PPS参数的任意无偏估计所能达到的精度。进行了性能分析，并与仿真结果进行了比较。

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Parameter estimation of hybrid hyperbolic FM and polynomial phase signals using the multi-lag high-order ambiguity function

Parameter estimation for a combination of a polynomial phase signal (PPS) and a hyperbolic frequency modulation (FM) is addressed. A novel approach is proposed that allows one to decouple estimation of the FM parameters from that of the PPS, exploiting the properties of the multi-lag high-order ambiguity function (ml-HAF). The accuracy achievable by any unbiased estimator of the hybrid FM-PPS parameters is investigated by means of the Cramer-Rao lower bounds (CRLB). Performance analysis is carried out and the CRLBs are compared with simulation results.

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Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136)

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