文章摘要
引用本文:胡居荣,曹宁,汪飞.基于现代谱估计的相关K杂波模拟[J].福州大学学报(自然科学版),2008,36(Z1):
基于现代谱估计的相关K杂波模拟
The simulation of correlative K-distribution clutter using modern spectral estimation
  
DOI:
中文关键词: 相关K杂波,现代谱估计,自回归模型,递推算法,仿真
英文关键词: correlative K-distribution clutter,modern spectral estimation,autoregressive model,Levinson-Durbin algorithm,simulation
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作者单位
胡居荣,曹宁,汪飞 河海大学电子信息工程系,江苏,南京,210098 
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中文摘要:
      针对相关K分布杂波仿真过程中具有指定功率谱的随机序列的产生,提出用现代谱估计进行相关随机序列产生的方法.该方法利用L-D算法求解自回归模型的Y-W方程以精确地模拟杂波的功率谱密度,以海杂波为例的仿真结果证明了方法的有效性.同时针对杂波仿真过程中自回归模型阶数的选择,对不同的K分布参数和功率谱宽度的杂波进行了仿真实验,通过对实验结果的分析给出一些有用的结论.
英文摘要:
      To produce of random sequence,this paper puts forward a method using modern spectral estimation to simulate correlative clutter with K-distribution probability density and desired spectrum.The method is to solve the Yule-Walker equation of the autoregressive model in order to meet the given power spectral density using the fast Levinson-Durbin algorithm.The simulation result shows that it is an effective method for clutter simulation.Simulations are done in order to give an appropriate choose about the order of autoregressive model during simulating sea clutter.All tests are done with different parameters of K-distribution density and width of spectrum and some useful results are acquired by analysis of the simulation results.
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