FAST ESTIMATION OF FREQUENCY AND 2-D DOAS FOR CYLINDRICAL CONFORMAL ARRAY ANTENNA USING STATE-SPACE AND PROPAGATOR METHOD

被引：18
|
作者：
Si, Weijian [1 ]
Wan, Liangtian [1 ]
Liu, Lutao [1 ]
Tian, Zuoxi [2 ]
机构：
[1] Harbin Engn Univ, Coll Informat & Commun Engn, Harbin 150001, Peoples R China
[2] Sci & Technol Underwater Test & Control Lab, Dalian 116013, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2013年 / 137卷
基金：
中国国家自然科学基金;
关键词：
PATTERN SYNTHESIS; ESPRIT;
D O I：
10.2528/PIER12121114
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The pattern of each element in conformal array has a different direction for the curvature of conformal carrier, which results in polarization diversity of conformal array antenna. Polarization parameters of incident signals are considered in snapshot data model in order to describe the polarization diversity of conformal array antenna. It is required that the polarization parameters and direction of arrival (DOA) of incident signals are estimated together. An integrated frequency and DOA estimation method is proposed in this paper for cylindrical conformal array antenna. The frequency estimation of signal source is obtained by constructing state-space matrix. Through well-designed configuration of elements on cylindrical carriers along with estimation of signal parameters via propagator method (PM), the decoupling scheme for DOA and polarization parameters is implemented. A novel parameter pairing method for frequency and DOA of multiple sources utilizing the interpolation technique is given, based on which the fast frequency-DOA estimation algorithm is developed. Effectiveness of the proposed method is demonstrated by simulation experimental results.
引用
收藏
页码：51 / 71
页数：21
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