累量域虛擬陣列二維波達(dá)方向估計(jì)算法
Cumulant-Based Virtual Array 2-D Direction of Arrival Estimation
-
摘要: 利用空間四階累量的孔徑擴(kuò)展性質(zhì),構(gòu)造了一種新的累量域虛擬陣列波達(dá)方向矩陣。由累量域虛擬陣列波達(dá)方向矩陣非零特征值的幅值和相位即可分別估計(jì)出信號(hào)源的方位角和俯仰角。本算法陣元利用率高,陣列布置靈活,由于采用了累量,通過適當(dāng)布置陣列可壓制任意分布噪聲,獲得較好的估計(jì)效果。
-
關(guān)鍵詞:
- 累量; 波達(dá)方向矩陣; DOA; 波達(dá)方向估計(jì)
Abstract: A new type cumulant-based virtual DOA matrix is formed using the property of aperture extension of fourth-order cumulants. The azimuth and elevation of the incident sources can be estimated simultaneity from the amplitude and phase information of non-zero eigenvalue of the new matrix respectively. With arbitrary geometry of the array, this method can extend actual array aperture efficiently. By properly laying out the array, this algorithm can suppress arbitrary distributed background noise and better estimation of DOA can be obtained. -
殷勤業(yè),鄒理和,Newcomb R W.一種高分辨率二維信號(hào)參量估計(jì)方法一波達(dá)方向矩陣法.通信學(xué)報(bào),1991,12(4):1-7.[2]姜衛(wèi)東,莊釗文,陳曾平.基于矩陣束的二維諧波恢復(fù).信號(hào)處理,2000,16(3):235-239.[3]Mathews C P, Zoltowski M D. Eigenstructure techniques for 2-Dangle estimation with uniform circular array[J].IEEE Trans. on SP.1994, 42(9):2395-2407[4]劉全.一種新的二維快速波達(dá)方向估計(jì)方法--虛擬累量域波達(dá)方向矩陣.電子學(xué)報(bào),2002,3(3):351-353.[5]姚敏立,殷勤業(yè).累量域高分辨率二維波達(dá)方向估計(jì)算法.西安交通大學(xué)學(xué)報(bào),1999,33(1):15-18.[6]Dogan M C, Mendel J M. Application of cumulants to array processing-part I: Aperture extension and array calibration[J].IEEE Trans. on. SP.1995, 43(5):1200-[7]張賢達(dá).時(shí)間序列分析-高階統(tǒng)計(jì)量方法.北京:清華大學(xué)出版社,1996:25-46.[8]Dogan M C, Mendel J M. Application of cumulants to array processing part II: Non-Gaussian noise suppression[J].IEEE Trans.on SP.1995, 43(7):1663-[9]Stoica P, Nehoral A. Music, maximum likehood, and Cramer-Rao bound[J].IEEE Trans. on ASSP.1989, 37(5):720- -
計(jì)量
- 文章訪問數(shù): 2089
- HTML全文瀏覽量: 87
- PDF下載量: 666
- 被引次數(shù): 0
下載:
