Collaborative Snapshot Positioning via Distributed Array Processing

2019 ◽  
Author(s):  
J.A. García-Molina ◽  
J.A. Fernández-Rubio
Keyword(s):  
Array Processing ◽  
Distributed Array ◽  
Snapshot Positioning

Undesired Radiation Suppression Technique for Distributed Array Antenna by Antenna Positioning and Delay Signal Processing

2017 ◽  
Vol E100.B (10) ◽  
pp. 1959-1967
Author(s):  
Kouhei SUZUKI ◽  
Hideya SO ◽  
Daisuke GOTO ◽  
Yoshinori SUZUKI ◽  
Fumihiro YAMASHITA ◽  
...  
Keyword(s):  
Signal Processing ◽  
Array Antenna ◽  
Distributed Array ◽  
Suppression Technique

Array features

2018 ◽  
Author(s):  
Michael Metcalf ◽  
John Reid ◽  
Malcolm Cohen
Keyword(s):  
Array Processing ◽  
Performance Enhancing

A complete description of the use of array processing is offered. Assumed-shape and automatic arrays are described, and the concept of elemental is introduced for operations, assignments, and procedures. Array-valued functions and the where construct are described, along with the notion of pure procedures. Array subobjects, aliasing, and array constructors are considered. The performance-enhancing features of the do concurrent construct and the contiguous property are included.

Adaptive antenna array processing with kernels

2007 ◽  
Author(s):  
M. Martinez-Ramon ◽  
A. Navia-Vazquez ◽  
C.G. Christodoulou ◽  
A.R. Figueiras-Vidal
Keyword(s):  
Antenna Array ◽  
Array Processing ◽  
Adaptive Antenna ◽  
Adaptive Antenna Array

scholarly journals Spectral Induced Polarization Survey with Distributed Array System for Mineral Exploration: Case Study in Saudi Arabia

Minerals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 769 ◽  
Author(s):  
Fouzan A. Alfouzan ◽  
Abdulrahman M. Alotaibi ◽  
Leif H. Cox ◽  
Michael S. Zhdanov
Keyword(s):  
Effective Medium Theory ◽  
Coupling Effect ◽  
Pilot Project ◽  
Drill Hole ◽  
Induced Polarization ◽  
Effective Medium ◽  
Inductive Coupling ◽  
Geothermal Resources ◽  
Spectral Induced Polarization ◽  
Distributed Array

The Saudi Arabian Glass Earth Pilot Project is a geophysical exploration program to explore the upper crust of the Kingdom for minerals, groundwater, and geothermal resources as well as strictly academic investigations. The project began with over 8000 km2 of green-field area. Airborne geophysics including electromagnetic (EM), magnetics, and gravity were used to develop several high priority targets for ground follow-up. Based on the results of airborne survey, a spectral induced polarization (SIP) survey was completed over one of the prospective targets. The field data were collected with a distributed array system, which has the potential for strong inductive coupling. This was examined in a synthetic study, and it was determined that with the geometries and conductivities in the field survey, the inductive coupling effect may be visible in the data. In this study, we also confirmed that time domain is vastly superior to frequency domain for avoiding inductive coupling, that measuring decays from 50 ms to 2 s allow discrimination of time constants from 1 ms to 5 s, and the relaxation parameter C is strongly coupled to intrinsic chargeability. We developed a method to fully include all 3D EM effects in the inversion of induced polarization (IP) data. The field SIP data were inverted using the generalized effective-medium theory of induced polarization (GEMTIP) in conjunction with an integral equation-based modeling and inversion methods. These methods can replicate all inductive coupling and EM effects, which removes one significant barrier to inversion of large bandwidth spectral IP data. The results of this inversion were interpreted and compared with results of drill hole set up in the survey area. The drill hole intersected significant mineralization which is currently being further investigated. The project can be considered a technical success, validating the methods and effective-medium inversion technique used for the project.

Sign in / Sign up

Export Citation Format

Share Document