uwb

Direction of Arrival (DOA) estimation is one of the key technologies of Direct Sequence Ultra Wide Bandwidth (DS-UWB) system.

This makes UWB very secure, which explains why it was once used for clandestine communications by military and espionage agencies.

and analyzed the characteristics of several common indoor channel models referred to the establishment of mine UWB channel model.

In IR-UWB system centimeter ranging is possible due to extremely short duration of transmitted pulses.

Direction of arrival (DOA) estimation is one of the key technologies of ultra-wideband (UWB) location.

Ultra-wideband (UWB) radar is already used to "see" through walls.

Impulse radar, also known as non-career radar and video pulse radar, is a branch or a special case of the Ultra Wide Band (UWB) radar.

Via simulation, The results show that this circuit can receive the UWB signal perfectly.

Ultra-wideband (UWB) technology is considered as one of the most promising candidates for short-range wireless communications.

The Navy reportedly plans to put UWB markers on almost everything it ships overseas, just to track materiel and keep it from being stolen.

Studies an ultra-wide band (UWB) time of arrival ( TOA ) estimation technique in dense indoor multipath environments.

On the basis of our analysis to the existing problems, the important challenges and development direction for UWB technology were proposed.

Wide beam width in horizon plane would be expected in antenna design for IR-UWB through-the-wall detection to cover most area of the room.

Introduced pulse UWB wireless communication system performance computer simulation and study the ultra-broadband communications technology.

In this dissertation a new category of ultra- wideband (UWB) planar antennas with a unique tapered-slot feeding structure is presented.

Depending up the thinking, two UWB antennas with compact sizes have been designed.

Based on this, the paper established mine UWB channel model with frequency-dependent and made its simulation and analysis.

Trajectory deviation of the aircraft is the main cause of phase errors in airborne Ultra-wideband Synthetic Aperture Radar (UWB SAR).

The waveform of UWB signals can be reconstructed by convolving the estimated impulse signals with Gaussian monocycle.

As an aspect of wireless communication's development, UWB wireless communication technology has been developed quickly.

The UWB detection radar is one of significant applications in UWB technology.

The multiple-access capability of the receiver is investigated using ultra-wideband (UWB) impulse signal with the given data rate and BER.

An ultra-wideband quadrature demodulation receiver data acquisition system is designed for the purpose of UWB signal processing .

Pulse shaping of the UWB signal makes the pulse waveform meet the emission mask ruled by the administration government.

The low complexity and low cost implementation of the whole system proves its possibility and practicability in UWB communications.

The new kid on the radio block is ultrawideband, also known as UWB or digital pulse wireless.

Secondly, the moving target UWB detection system is simulated, which the range and velocity of the target are extracted simultaneously.

Because UWB signal covers a wide range of frequencies, previous study on it only stayed in qualitative research stage.

The key technique in Ultra- wideband (UWB) communication system, namely technique of UWB pulse signal detection and receiving, is discussed.

Firstly, this paper proposes a data-aided synchronization algorithm in the differential transmitted reference (DTR) UWB systems.

The UWB wireless communication technology is new exploration of radio spectrum, and this will develop new fields of time-domain spectrum.

Ultra Wideband impulse radio (UWB-IR), a promising and novel radio technology, has a broad application prospect in wireless communication.

With respect to the complex monitoring environment of multi-user, this paper focused on dynamic resource allocation in MB-OFDM-UWB system.

An ultra high speed data acquisition system used in Ultra Wide-band (UWB) radar is introduced in this paper.

Compared to baseband UWB radios, the MultiBand OFDM ultra-wide band system has obtained widespread approval in short-range wireless links.

Secondly, the mixing principle and UWB technology is analyzed deeply. Summarized some parameters that will be used in design.

In this paper, through approach of various band-rejected UWB planar monopole antennas, principles and methods are researched.

Rapid timing acquisition constitutes a major challenge in realizing the Ultra Wideband (UWB) technology.

Multi-life detection issues can be well resolved using the detection method of impulse UWB combined the high resolution MUSIC algorithm.

This method is founded on the frequency domain model of DS-UWB array signals. The spatial spectral function is then derived for analysis.

With the development of UWB technology, it is possible for wireless mobile multimedia to apply to MANET.

UWB radar can see right through walls, ceilings and floors that would block or reflect other types of radio signals.

All foregoing non-ideal effects degrade the performance of the UWB transceivers severely.

The partial discharge signals were gathered by a united detective system of UWB method, pulse current method and UHF method.

Fees for this Bridging programme are equivalent to the UWB standard undergraduate fees.

UWB technology is able to support high data rate.

UWB pulses are so short that the direct signal has come and gone before the reflected path arrives, so no cancellation takes place.

UWB is faster than current wireless LAN technologies and provides a short-range, high-bandwidth pipe that eliminates interference.

This paper discusses several questions about the information processing technology of Ultra-WideBand SAR ( UWB-SAR).

The most critical component of the EMC testing system for mobile handsets is the UWB detecting antenna.

In the following part, the coupling of Ultra Wideband (UWB) pulse entering cylindrical cavity connecting slot is simulated and analyzed.

What is more, engineers expect these UWB units to be cheaper, smaller and less power-hungry than today's narrowband radio devices.

According to the above research work, the validity and feasibility of the moving target UWB detection system designed are proved.

A balanced orthogonal code is adopted to improve the typical COOK UWB and avoid optimal threshold estimation.

UWB systems can, in principle, be designed to use nearly any part of the RF spectrum.

Research on UWB(Ultra-Wideband) ground echo provides simulation supports for designs of UWB devices.

UWB transmissions trade distance for bandwidth, so the greater the range, the lower the final data rate.

The two devices communicate via Wireless USB, an Ultra Wide Band (UWB) wireless technology.

An energy detection based impulse radio ultra - wideband ( IR- UWB) system is proposed in this paper.

Simulation results show the introducing of MIMO in UWB may improve performance of system by reducing BER.

Third, the signal processing and anti-noise performance of TH-UWB system receiver were studied.

With the development of UWB, large quantity of UWB products will be used for rapid voice and data communication in indoor environments.

A novel adaptive ultrawideband(UWB) narrowband interference suppression method is presented based on cognitive radio(CR) theory.

This paper analyzed the performance of traditional receiver of TR-UWB, and effect of noise-on-noise item by BER form.

Firstly, a brief introduction of ultra-wide bandwidth radio was introduced.

Present UWB-OFDM PHY layer designs for VHDR, carrying out the simulation and analysis on the systems.

The experiments show that radio fuse may explode early when UWB EMP irradiate it.

Based on this, this paper focused on the UWB path loss model and the multi-path fading model in mine environment.

Then presenting the application of channel coding in UWB systems.

In the no carry wave UWB, narrow pulse generator is the most particular and important part.

In contrast, UWB uses every frequency available to it, all at the same time.

In contrast with the conventional communication system using the 'sine wave', UWB-IR is a baseband carrierless short pulse.

UWB products will include radar and electronic location and positioning devices in addition to radios.

We analyze energy attenuation character of UWB in free space and other dielectric objects.

NLOS propagation is a main source of ranging error for IR- UWB localization systems.

Based on this numerical method, several practical short wave antennas excited by UWB EMPs are investigated.

We designed UWB down-conversion Mixer in succession.

The influence of UWB system on CDMA downlink capacity has been analyzed in this paper.

Todate, the MultiBand OFDM Alliance has more than 60 participants (and growing) that support a single technical proposal for UWB.

In the end, we test our RFI suppression algorithms by the real UWB-SAR data and their validity is proved.

A novel channel estimation algorithm is proposed for MB-OFDM UWB systems based on channel shortening.

Studying the development of UWB has realistic meaning that includes standardization, products, market and leading trend's technology.

A timing acquisition scheme based on energy detection is proposed for IR-UWB communications.

UWB SAR works usually in low Signal-to-Clutter Ratio (SCR) conditions in order to detect targets hidden in forest or buried in ground.

A proof-of-concept experiment of UWB-over-fiber down-link system is set up.

In order to make the UWB has the adaptive adjustment ability as the changed jamming environment, the CR technology is introduced.

based on UWB radio code, Chapter VIII, ultra- wideband channel and receiver.

As an electronic measuring technology, UWB is more accurate than Global Positioning System satellites, and it can be used indoors.

A timing acquisition scheme of UWB based on TH code matched filter is proposed, at the same time the algorithm named PLPDI is proposed too.

This thesis mainly studies the indoor locationing based on UWB techniques.

The jam principle is analyzed using the carrier-free UWB radar as the study object.

Based on the implementation of the band-notched technique, three kinds of band-notched UWB slot antennas are proposed.

My task is mainly to study UWB indoor channel model.

Study of An Semi-circle Monopole Planar Antenna With Circular Slot for UWB Applications

Low complexity iterative differential decoding algorithm for multiband UWB communication systems

Research on Applications of High-Speed Sampling Technology and Its Remote UWB Radar Signals Processing

Application Prospect Analysis of UWB Communication Technology in Concealed Communication

Accumulation Algorithm for Impulse System UWB Radar Moving Target and Its Application

Study of performance of UWB transmitted-reference receivers

UWB Carrier Envelope Modulation and Orthogonal Comb Spectrum Correlation Demodulation

The sinusoidal modulation gaussian pulse used in UWB communication

Applications of Stochastic Bridge Processes for Modeling UWB Wireless Propagation Channels

Orthogonalization Design of Orthogonal Pulse Waveforms for UWB Communications

Research on the Radiation Characteristics of UWB Antennas with Apertures Illuminated by Cylindrical Waves

UWB Technique's Characteristic and Its Applications in Home Wireless Network

Research on High-Accuracy Programmable Timer Used in Acquiring UWB Signals

Design and Realization of a Simple UWB Receiver

Orthogonal Sinusoidal Correlation Receiver in UWB Communication

Study of exploration capability of pseudo-random code UWB short pulse

the signal characteristic parameters affecting the anti-jamming performance of UWB radio fuze were obtained;

According to the result of research, made out management mode and related standard of UWB

Acquisition Performance Analysis for Pilot Pulsed UWB Communication System

Applications of Stochastic Beams for Characteristics of UWB Indoor Multipath Channels

Field strength prediction in UWB system with a neural network

Fulfilled the EMC research and test between UWB and part of public wireless communication systems

Rapid timing acquisition algorithm for UWB wireless communications

UWB Pulse Signals and Their Interference on Narrowband Communication Systems

Analysis on UWB Pulse Waveform Design in Multipath Communication Environments

Future application expectation of the UWB technology in marine systems

A Method for Real Time Correcting the Amplitude and Phase Errors of UWB Quadrature Demodulation Receivers

Choices of UWB Communication Signals and System Performance Simulations

Application of time-frequency analysis on UWB scattering signal processing

Simulation and Analysis of UWB Signals Clustering Property of Indoor Multipath Channels

UWB Technique of Carrier Modulation and Its Realization

Analysis of UWB Signal Propagating in Rectangular Waveguide Using FDTD Arithmetic

Iterative multi-user detection algorithm for UWB communication systems

An Advanced Automatic Measuring Computational UWB Compact Range System

The Methods for EMC Analysis between UWB Wireless Communication Systems and Other Wireless Communication Systems

Realization and Analysis of Acquisition Algorithm to Synchronize PN Sequences in DS-UWB Systems

Effect of Shielding Effectiveness of Negative Permittivity Composite Materials for HPM and UWB

Analysis and Optimization of a Planar UWB Antenna

The Synchronization Technique in IR-UWB Wireless Communication System

Performance Analysis of Convolution Codes in UWB Communication System

Link adaptation algorithm for UWB systems with dynamic rate and payload size optimization

New realization scheme of pseudo-chaotic-based encoder and decoder for UWB communications

A Novel Adaptive Algorithm Using in UWB RAKE Receiver: Fast Transversal Filter Algorithm

Acquired the radiation pattern UWB by different technical implements

A Comparative Study on the Performances of UWB Systems under Multi-channel Environments

Research and application of UWB technique in industry communication

A Novel Adaptive Narrowband Interference Mitigation Scheme for DS-UWB Systems

Probe on UWB Wireless Communication Technology for Coal Mine Underground

Modeling and Simulation of UWB Wireless Communication Channel

Design and Simulation of a UWB Pulse Generator

UWB Receiver Technology of A Low Sampling Rate

Computer Simulation of UWB Fading Channel and Performance Analysis

Applications of Stochastic Bridge Methods for UWB Wireless Channel

Symbol Timing with Modified Autocorrelation Scheme for UWB Systems

A Location-Aided on-Demand Topology Maintenance Routing Algorithm for UWB Ad-hoc Networks

Analysis of optimization for properties of UWB indoor multipath channel

A Study on UWB Wireless Communication and Its Two Standards

Principle of UWB and its applications standard

Optimal design for pulse waveforms of UWB systems in dense multipath environment

Design of a High Speed UWB Parallel Detection Receiver

The Present Development and Application of UWB Wireless Communications

The Research of UWB Impulse Wireless Transmission Technology

Performance Comparing of PAM and PPM under UWB Frequency Dependence Channel

Design and implementation of high-speed UWB communication systems

The Multiuser Acquisition Performance Analysis with TH UWB System

An Exploration of UWB Technology in Shipboard Electronics Systems

Path loss characteristics of UWB signals in vacancy indoor environment

Analog UWB Impulse Radio Using Time-Hopping Spread Spectrum Techniques

The UWB technology brings new implemental idea to the crowded radio spectrum

Research on UWB for High Speed Wireless Transmission in Indoor Environment

Application of envelope analysis for UWB signal acquisition

Performance Analysis of UWB System Using Orthogonal Wavelet

Research on the radiated characteristic of UWB aperture in the condition of plane waves

The Reasoning of Rapid Acquisition Algorithm for Pulse Timingover Frame Period in UWB Communications

The Applications and Disadvantages of the New System UWB Radar

Study of UWB-Based Technology in High-speed WPAN

The UWB technology also presents new challenges for radio management

Stochastic calculus model for UWB indoor multipath channel

The Evolvement and Prospect of UWB Communication Standards

A method for improving UWB radar target recognition probability

A Novel UWB Receiver Structure for Martial Image Communications

UWB channel model and simulation for complex indoor environment

Two proposal of standards of UWB and its development

Influence of UWB microwave irradiation on peripheral blood cells in rats

On realization of symbol timing with UWB systems in the multipath environment

A Compensating Algorithm for Residual Phase Error in Airborne UWB SAR Images

Structure Model of UWB Wireless Communication System

A study about the radiation propagation property of UWB electromagnetic pulse

The Application of UWB Wireless Access System in Mine Communication

Provided technical support for spectrum plan of UWB technology

Multi-access performance of DS UWB system under indoor dense multi-path channel

A New UWB Pulse Design Algorithm for Inband Interference Suppression

High data rate transmissions in UWB system using orthogonal pulses

Research on UWB Coexistence with Narrowband Systems

Research on accurate ranging of UWB under indoor environments

An improved pseudo-chaotic time hopping scheme for UWB multiple access

Waveform design and analysis of UWB communication signal

A New Receiver Structure for UWB Wireless Communication System

Discussion and Practice for Forming the UWB Sub-Nanosecond Pulses

Channel and Timing Estimation for UWB Systems Based on Sampling with Finite Rate of Innovation

Research on UWB EMP Technology and Effects of UWB EMP to Electronic Equipment

A Method for High Sensitivity Envelope Detection of UWB Pulse Signals

An Modified Location-aided Routing Algorithm in UWB Based Ad Hoc Networks

Analysis of acquisition for UWB over dense multipath channel

A differential receiver for UWB communications with PPM

Design of Impulse Generator in UWB Communication System

On the Analysis of UWB Key Technologies and Development Strategy

A Method to Generate Orthogonal Shaping Pulses for UWB Using Wavelet

Closed BER expression of multi-user DS UWB systems in indoor fading channel

Study on Equivalent Sampling of Nonperiodic UWB Signal

Application of OFDM technique in UWB signal processing

The Analyzing and Researching of Communication System in TM-UWB

Performance of DS-UWB RAKE receivers with multi-path synthesize

A Two-Step TOA Estimation Method for UWB Based Wireless Sensor Networks

Study and Development of UWB Compact Range Measuring System for Radar Target of Time Domain

A New Multi - modulation Method of UWB: Pseudo - chaotic Coding and Time Hopping

A Rapid Acquisition Method of UWB Wireless Communication

Research on UWB and its applications

Investigation of coaxial to plane converter in UWB antenna

UWB Airborne SAR Imaging Base on Range Migration Algorithm

The Investigation on the Application of UWB to Cognitive Radio

Rapid acquisition of UWB signals in the dense multipath channel

Limit effect of inter chip interference on I-UWB bandwidth efficiency

The wavelet modulation time hopping UWB impulse radio

Optimization of Waveforms for UWB Disk Antenna Arrays

Novel UWB communication pulse design method

Research on UWB SAR Motion Compensation Accuracy

An Improved Rake Receiver for UWB Communications

Performance Analysis Of RAKE Receiver Using The Intel UWB Multipath Channel Model

UWB high speed interface for home appliance machines

Multipath model for UWB indoor LOS environments

A Summarization of UWB Wireless Sensor Networks

Methods for data-aided channel estimation for DS-UWB systems

Effect of PRF on BER performance of UWB system in indoor multipath channel

Optimal Design of Novel UWB SSCI Synthesis Pulse Signal

Research on Interference of UWB Signal to GPS Receivers

A Low Complexity UWB Communication System

Study on Dual Spirals Antenna Array for UWB Technology

Application of UWB Technology on CATV Network

Design and Realization of UWB Pulse Generator

Adaptive acquisition scheme for DS-UWB system

MAC Protocol Accelerator Design over UWB

UWB pulse design method based on approximate prolate spheroidal wave functions

A Method of Achieving Narrow Nanosecond Level UWB Pulse

Investigation of acquisition of the UWB signals based on BP neural network

Time domain beamforming for UWB pulse signal

The Application of UWB in the wireless sensor network

Simplified EM Modeling for FOPEN UWB SAR Man-Made Target

The Survey of UWB Indoor Reference Channel Model

UWB Radar Target Recognition Based on Eliminating Impulse Response

Waveform Design for UWB Communications Based on Time-frequency Analyses

Detection of Dihedral Targets in UWB-SAR Images

Comparison of two kinds of spread spectrum modulation technologies in UWB system

An Improved Algorithm for UWB Precision Positioning Based on Time Averaging

Research of industrial wireless sensor network based on UWB technology

The Modeling and Simulation of UWB Channel

UWB Launches a New Era in Home Consumer Electronics