Frequency Diverse Array Radar for Range-Angle Estimation Based on Difference Co-array

Authors

Huang Ling, 1. College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China; ;
Zhiming He, 2. College of Electronic Engineering, University of Electronic Science and Technology, Chengdu 611731, China;
Li Xiang, 2. College of Electronic Engineering, University of Electronic Science and Technology, Chengdu 611731, China;
Yang Fan, 2. College of Electronic Engineering, University of Electronic Science and Technology, Chengdu 611731, China;

Abstract

Abstract: Because of the coupling in range and angle responses, which could not estimate directly both the range and angle information of a target, a sub-array scheme of distance-angle joint estimation of a target for frequency diverse array (FDA) radar was proposed. The entire array was divided into two subarrays, which employed two different frequency offsets. For aperture extension, each subarray adopted difference co-array structure to provide O(N²)degrees of freedom by only N physical sensors when the second-order statistics of the received data was used. Therefore, the targets range and angle could be estimated directly with the subspace-based multiple signal classification algorithms for the decoupling capability of distance and angle dimensional. The estimation performance was examined by analyzing the Cramer-Rao lower bound (CRLB) versus signal-to-noise ratio (SNR). The effectiveness was verified by the numerical simulation results.

Recommended Citation

Ling, Huang; He, Zhiming; Xiang, Li; and Fan, Yang (2020) "Frequency Diverse Array Radar for Range-Angle Estimation Based on Difference Co-array," Journal of System Simulation: Vol. 29: Iss. 4, Article 25.
DOI: 10.16182/j.issn1004731x.joss.201704025
Available at: https://dc-china-simulation.researchcommons.org/journal/vol29/iss4/25

First Page

886

Revised Date

2015-08-10

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201704025

Last Page

893

CLC

TN95

Recommended Citation

Huang Ling, He Zhiming, Li Xiang, Yang Fan. Frequency Diverse Array Radar for Range-Angle Estimation Based on Difference Co-array[J]. Journal of System Simulation, 2017, 29(4): 886-893.

DOI

10.16182/j.issn1004731x.joss.201704025