Ultra-Wideband Real-Time Channel Sounder and Directional Channel Parameter Estimation

نویسندگان

  • R. Zetik
  • R. Thomä
  • J. Sachs
چکیده

An Ultra-Wideband (UWB) real-time channel sounder architecture is described which allows the measurement of the timevariant radio propagation channel in the extreme wide band ranging from nearly zero to 5 GHz. Synchronous multi-channel operation is supported by excellent timing stability and low power consumption of miniature size LTCC modules comprising custom integrated SiGe HBT circuits. This is a prerequisite to build a Multiple-Input-Multiple-Output (MIMO) sounder. Measurement examples using the experimental UWB sounder system are presented and the application for high resolution directional channel parameter estimation

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

TDOA assisted RSSD based localization using UWB and directional antennas

This paper studies the use of directional antennas for received signal strength difference (RSSD) based localization using ultra-wideband and demonstrates the achievable accuracy with this localization method applied to UWB. As introduced in our previous work the RSSD localization is assisted with one Time Difference of Arrival (TDOA) estimation. The use of directional receiving antennas and an...

متن کامل

Outage Probability Bound and Diversity Gain for Ultra-Wideband Multiple-Access Relay Channels with Correlated Noises

In this paper, Ultra-wideband (UWB) multiple access relay channel with correlated noises at the relay and receiver is investigated. We obtain outer and inner bounds for the IEEE 802.15.3a UWB multiple access relay channel, and also, a diversity gain bound. Finally, we evaluate some results numerically and show that noise correlation coefficients play important role in determining relay position.

متن کامل

A Novel Ultra-wideband Real-time Mimo Channel Sounder

Real-time MIMO (Multiple Input to Multiple Output) channel sounding is already a well established technology for experimental propagation studies in mobile radio which finally delivers the CIR matrix (CIR: channel impulse response), [1]. However, the bandwidth of the existing real-time MIMO sounder systems is somewhat limited to 100...240 MHz. This is by far not enough to investigate UWB (Ultra...

متن کامل

Results of Double-Directional Channel Sounding Measurements

Ð In this paper a new channel sounding concept for double-directional and time-delay resolved channel measurements is proposed. It is based on the RUSK ATM vector channel sounder with a uniform linear array at the receiver. Using a switched multibeam antenna instead of an omni-directional antenna at the transmitter site the measurement device became a MIMO system. The sounder has been employed ...

متن کامل

Low Sampling Rate Time Acquisition Schemes and Channel Estimation Algorithms of Ultra-Wideband Signals

Ultra-wideband (UWB) communication is a viable technology to provide high data rates over broadband wireless channels for applications, including wireless multimedia, wireless Internet access, and future-generation mobile communication systems (Karaoguz, 2001; Stoica et al., 2005). Two of the most critical challenges in the implementation of UWB systems are the timing acquisition and channel es...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003