Frequency Diversity Array for DOA Estimation
Journal Title: Mehran University Research Journal of Engineering and Technology - Year 2017, Vol 36, Issue 4
Abstract
The localization of targets has been presented in this article. DOA (Direction of Arrival) is an important parameter to be determined by radar. The MLE (Maximum Likelihood Estimator) has been widely used to accurately and efficiently estimate the DOAs of multiple targets. The targets at different ranges result in a variation in amplitude of the received signals, so an MLE estimator has to operate at all ranges. For accurate results of DOA, the complex amplitudes of multiple targets should not be much different and also the prior information of Doppler and number of targets is required. In this paper, an approach is proposed which uses the classical 2D algorithm to estimate range, Doppler and number of targets and then FDA (Frequency Diversity Array) is used to focus power in a particular range. As a result, the MLE can get data from a particular range cell where all targets have almost same amplitude and thus MLE can accurately estimate the DOAs of multiple targets. Simulations and results have confirmed the effectiveness of proposed approach.
Authors and Affiliations
N. A. Baig, M. B. Malik, M. Zeeshan
Keywords
Related Articles
- EP ID EP224783
- DOI 10.22581/muet1982.1704.05
- Views 77
- Downloads 0
Hexagonal Printed Monopole Antenna with Triple Stop Bands for UWB Application
Inherently UWB (Ultra Wideband) communication systems comes with interference problem with some if the existing narrowband communication systems. These bands are stopped with the help of band-stop filter in order to redu...
Assessing the Effect of Different Water Table Depths on Water Use, Yield and Water Productivity of the Okra Crop
An experimental study was carried out on a Lysimeter with the aim of partially meeting WRs (Water Requirements) of the Okra crop through SWT (Shallow Water Table) while maintaining the SWT at various levels below the gro...
Analysis of Emergency Medical Response Service in Peshawar through Simulation
EMRS (Emergency Medical Response Service) is the public safety system that is responsible for the initial first aid and transportation of the patient to the hospital. Providing a timely response to any emergency situatio...
Socio-Cultural Value of Public Open Spaces with Hamchas in Dera Ghazi Khan City, Pakistan
The socio-cultural value of open spaces normally refers to the behavior of users towards their surroundings. In the city of DGK (Dera Ghazi Khan), the wooden cots (locally known as Hamachas) are placed at almost every ch...
Automated Generation of OCL Constraints: NL based Approach vs Pattern Based Approach
This paper presents an approach used for automated generations of software constraints. In this model, the SBVR (Semantics of Business Vocabulary and Rules) based semi-formal representation is obtained from the syntactic...