| 采用拟Newton法实现DOA及功率联合估计 |
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| 引用本文： | 何子远,庞晓凤,赵志钦. 采用拟Newton法实现DOA及功率联合估计[J]. 电子科技大学学报(社会科学版), 2010, 0(2) |
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| 作者姓名： | 何子远 庞晓凤 赵志钦 |
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| 作者单位： | 电子科技大学电子工程学院; |
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| 基金项目： | 国家自然科学基金(60771042) |
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| 摘 要： | 为了增加移动通信的容量和链接质量,需要准确地知道到达波的方向(DOA)和功率。该文提出了多维非线性目标函数,用来波DOA和功率作优化变量,并采用拟Newton法中常用的Davidson-Fletcher-Powell(DFP)算法进行优化;将优化结果和轮换投影(AP)算法进行比较。仿真表明,当入射信号在空间相隔较远时,该结果和AP算法精度相当,当入射信号在空间接近时,该结果优于AP算法。
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| 关 键 词： | DFP DOA估计 拟Newton法 功率估计 |
Power and DOA Estimation with Newton-Like Method |
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| HE Zi-yuan,PANG Xiao-feng,, ZHAO Zhi-qin. Power and DOA Estimation with Newton-Like Method[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2010, 0(2) |
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| Authors: | HE Zi-yuan PANG Xiao-feng ZHAO Zhi-qin |
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| Affiliation: | School of Electronic Engineering;University of Electronic Science and Technology of China Chengdu 610054 |
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| Abstract: | To increase the capacity and link performance of mobile communications,it is important to accurately estimate the powers and directions of arrival(DOA) of sources.A multi-dimension nonlinear cost function is proposed for this purpose,where the DOAs and powers of sources are optimization parameters.The optimal results are obtained with the Davidson-Fletcher-Powell(DFP) algorithm and are compared with the results of alternating projection(AP) algorithm.The simulation results show that DFP has the accuracy in ... |
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| Keywords: | Davidon-Fletcher-Powell DOA estimation Newton-like method power estimation |
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