نتایج جستجو برای: passive radar

تعداد نتایج: 106873  

Journal: :International Journal of Antennas and Propagation 2019

Journal: :DEStech Transactions on Materials Science and Engineering 2021

Journal: :IEEE Antennas and Wireless Propagation Letters 2022

Due to its high delay resolution, the ultra-wideband (UWB) technique has been widely adopted for fine-grained indoor localization. Instead of active positioning, UWB radar-based passive human tracking is explored using commercial off-the-shelf (COTS) devices. To extract time-of-flight (ToF) reflected by moving person, accumulated channel impulse responses (CIR) and corresponding variances are u...

Journal: :IEEE Transactions on Aerospace and Electronic Systems 2020

Journal: :IEEE Transactions on Aerospace and Electronic Systems 2019

2001
U. LÖHNERT S. CREWELL C. SIMMER A. MACKE

A method for combining ground-based passive microwave radiometer retrievals of integrated liquid water (LWP), radar reflectivity profiles (Z ), and statistics of a cloud model is proposed for deriving cloud liquid water profiles (LWC). A dynamic cloud model is used to determine Z–LWC relations and their errors as functions of height above cloud base. The cloud model is also used to develop an L...

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