摘要
改进了多项式相位变换,并提出了多相位信号参数估计方法。仿真证明了在较低信噪比的情况下,参数估计的均方误差接近Cramer-Rao界。采用傅里叶系数插值的频率估计算法提高了该方法的运算速度。分析和仿真结果证明了该方法的有效性。
On the basis of improving polynomial-phase transform,this paper proposed a polynomial-phase signal parameter estimation method.The mean-square errors of the estimates were shown to be close to the Cramer-Rao bounds even at lower signal-to-noise ratios.Using an frequency estimation algorithm based on interpolation on Fourier coefficients made the method fast.Some analysis and simulation results were included to demonstrate its performance.
出处
《计算机应用研究》
CSCD
北大核心
2010年第7期2502-2504,2512,共4页
Application Research of Computers
基金
国家科技部条件平台建设资助项目(2005DKA10101)
关键词
多项式相位信号
参数估计
仿真
polynomial-phase signal（PPS）
parameter estimation
simulation
