Waveform Analysis of UWB GPR Antennas

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Waveform Analysis of UWB GPR Antennas

Ground Penetrating Radar (GPR) systems fall into the category of ultra-wideband (UWB) devices. Most GPR equipment covers a frequency range between an octave and a decade by using short-time pulses. Each signal recorded by a GPR gathers a temporal log of attenuated and distorted versions of these pulses (due to the effect of the propagation medium) plus possible electromagnetic interferences and...

متن کامل

GPR Full Waveform Sensitivity Analysis using a FDTD Adjoint Method

Coarse structures involving low electrical contrasts can be profitably imaged by means of cheap and relatively simple methods such as travel time tomography, whereas fine structure involving sub-wavelength detail can only be recovered by inverting full-waveform data. Despite its complexity and high computation costs, full-waveform inversion of GPR data has become a popular tool for high-resolut...

متن کامل

UWB Antennas for Wireless Applications

Currently, there is an increased interest in ultra-wideband (UWB) technology for use in sev‐ eral present and future applications. UWB technology received a major boost especially in 2002 since the US Federal Communication Commission (FCC) permitted the authorization of using the unlicensed frequency band starting from 3.1 to 10.6 GHz for commercial com‐ munication applications [1]. Although ex...

متن کامل

UWB Signal Sources, Antennas & Propagation

This paper discusses the history of Ultra-Wide-Band (UWB) wireless and considers spectrum issues. It deals with UWB signal sources, including step, impulse, monocycle and rf pulses. It introduces new NLTL technology that can generate 6 V, 4 ps pulses and that can be used for 10 Gb/s, millimeter wave, UWB wireless LANs. Several UWB antennas are presented including: conical, TEM horn, D*dot, mono...

متن کامل

UWB antennas: design and modeling

1.1 Brief history of antennas and their evolution The antenna is an essential part of any wireless system as it is the component providing transition between a guided wave and a free-space wave. According to the IEEE standard definitions of terms for antennas (IEEE, 1993), an antenna is defined as a means for radiating or receiving radio waves. During the period 1885-1900, some pioneers invente...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Sensors

سال: 2009

ISSN: 1424-8220

DOI: 10.3390/s90301454