scholarly journals Performance Analysis of Phased Array and Frequency Diverse Array Radar Ambiguity Functions

2017 ◽  
Vol 2 (3) ◽  
pp. 389-394
Author(s):  
Shaddrack Yaw Nusenu
Keyword(s):  
Performance Analysis ◽  
Phased Array ◽  
Frequency Diverse Array ◽  
Ambiguity Functions

scholarly journals Antenna Element Index Modulation for Frequency Diverse Array

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Gaojian Huang ◽  
Yuan Ding ◽  
Vincent Fusco ◽  
Shan Ouyang
Keyword(s):  
Performance Analysis ◽  
Wireless Communication ◽  
Carrier Frequency ◽  
Antenna Element ◽  
Radiation Patterns ◽  
Carrier Frequency Offsets ◽  
Frequency Offsets ◽  
Frequency Diverse Array ◽  
Selected Subset ◽  
Index Modulation

In this paper, we propose a new architecture and provide performance analysis for frequency diverse array (FDA) Radar combined with the index modulation (IM) techniques. Here, the IM concept is applied upon frequency offsets in an FDA. Information is transmitted by a dynamically selected subset of antenna element indices applying predefined carrier frequency offsets, which generate different radiation patterns. It is shown that this enables the capability for simultaneous wireless communication and FDA Radar that has the range-angle coupling issue resolved.

Design and Performance Analysis of a Miniature, Dual-Frequency, Millimeter Wave Linear Phased Array Antenna

2017 ◽  
Vol 65 (12) ◽  
pp. 7029-7037 ◽  
Author(s):  
Mohamed I. Ibrahim ◽  
Mostafa G. Ahmed ◽  
Mohamed El-Nozahi ◽  
Amr M. E. Safwat ◽  
Hadia El-Hennawy
Keyword(s):  
Performance Analysis ◽  
Millimeter Wave ◽  
Phased Array ◽  
Array Antenna ◽  
Dual Frequency ◽  
Phased Array Antenna ◽  
And Performance

Performance Analysis of a Cognitive Phased Array Radar with Online Tracking Capability

2016 ◽  
Vol 94 (4) ◽  
pp. 3163-3180
Author(s):  
Abdul Basit ◽  
Ijaz Mansoor Qureshi ◽  
Bilal Shaoib ◽  
Wasim Khan ◽  
Aqdas Naveed Malik
Keyword(s):  
Performance Analysis ◽  
Phased Array ◽  
Phased Array Radar ◽  
Online Tracking

scholarly journals Frequency Diverse Array Radar Cramér-Rao Lower Bounds for Estimating Direction, Range, and Velocity

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Yongbing Wang ◽  
Wen-Qin Wang ◽  
Huaizong Shao
Keyword(s):  
Lower Bounds ◽  
Gaussian Noise ◽  
Phased Array ◽  
Fundamental Question ◽  
Phased Array Radar ◽  
Distinct Frequency ◽  
Element Number ◽  
Frequency Diverse Array ◽  
Simulation Results ◽  
Radar Frequency

Different from phased-array radar, frequency diverse array (FDA) radar offers range-dependent beampattern and thus provides new application potentials. But there is a fundamental question: what estimation performance can achieve for an FDA radar? In this paper, we derive FDA radar Cramér-Rao lower bounds (CRLBs) for estimating direction, range (time delay), and velocity (Doppler shift). Two different data models including pre- and postmatched filtering are investigated separately. As the FDA radar has range-angle coupling, we use a simple transmit subaperturing strategy which divides the whole array into two subarrays, each uses a distinct frequency increment. Assuming temporally white Gaussian noise and linear frequency modulated transmit signal, extensive simulation examples are performed. When compared to conventional phased-array radar, FDA can yield better CRLBs for estimating the direction, range, and velocity. Moreover, the impacts of the element number and frequency increment are also analyzed. Simulation results show that the CRLBs decrease with the increase of the elements number and frequency increment.

scholarly journals Frequency Diverse Array Antennas: From Their Origin to Their Application in Wireless Communication Systems

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Shaddrack Yaw Nusenu ◽  
Abdul Basit
Keyword(s):  
Wireless Communication ◽  
Communication Technology ◽  
Communication Systems ◽  
Phased Array ◽  
Beam Steering ◽  
Array Antenna ◽  
Wireless Communication Systems ◽  
Phased Array Antenna ◽  
Frequency Diverse Array ◽  
Near Future

Wireless communication systems have gained considerable growth rate nowadays, with the anticipation that communications will be available everywhere and anywhere in the near future. Phased array antenna whose beam steering is fixed in an angle for all range cells has been utilized for wireless communications. To mitigate this problem, a new array concept, namely, frequency diverse array (FDA), was proposed. This paper presents how FDA technology could be useful in today’s wireless communication technology. FDA is distinct from phased array in a sense that it employs frequency increment across array elements. The use of a frequency increment creates a beam steering that is a function of angle, time, and range which allows the FDA antenna to transmit the energy along the prespecified range and angle direction. In addition, we consider the time-variant beampattern aspect of an FDA, which has normally been ignored in the literature. In this study, we present the mathematical fundamentals of FDA antenna and why it could be exploited for wireless communication systems. Furthermore, FDA using Butler matrix for communication has been discussed. Performance analysis in terms of transmit beampattern, signal-to-interference-and-noise ratio (SINR), and direction of arrival has been presented and compared with that of phased array antenna.

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