| 摘要: |
| 提出了波形未知确定信号时频差参数估计的最大似然算法，得出利用互模糊函数可以实现此
种信号条件下时频差参数最大似然估计的结论，推导出了闭合形式的克拉美罗下界并对比了
不同信号模型下的参数估计精度。仿真实验结果表明了估计算法和性能分析的正确性。 |
| 关键词: 波形未知信号 时频差参数估计 最大似然算法 克拉美罗下界 |
| DOI：doi:10.3969/j.issn.1001-893x.2013.06.012 |
|
| 基金项目: |
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| A maximum-likelihood algorithm for TDOA/FDOA estimation of unknown deterministic signals |
| LIAO Li,ZHANG Tao |
| () |
| Abstract: |
| A Maximum-Likelihood algorithm for TDOA/FDOA estimation of unknown det
erministic signals is proposed. It is shown that the algorithm leads calculation
of the complex ambiguity function. The parameter estimation lower bound is calc
ulated and compared in different signal models. Simulations are provided to supp
ort the theoretical results. |
| Key words: unknown deterministic signals TDOA/FDOA estimation maximum-likelihood algorithm cramer-rao lower bound(CRLB) |
