نتایج جستجو برای: spectrum analyzer

تعداد نتایج: 240765  

2016
Alaa H. Ali

In this work, Laser-induced plasma technique (LIPS) has employed to generate plasma in air at atmospheric pressure from a carbon sample by using a passively Q-switched Nd:YAG laser (334.7mJ, 1064 nm with 9 ns pulse duration, 37MW peak power ,the area of the laser spot was 5.72*10P P cmP P and 6.4*10P PMw/cmP P the power intensity). optical spectrum analyzer with 150 pm optical resolution for sp...

Journal: :IEEE Transactions on Instrumentation and Measurement 2001

2015
Jens Saalmüller Matthias Kuba Andreas Oeder

In this paper, a software-based implementation of a Traffic Detective for radio traffic monitoring in the 868 MHz band is presented. Besides the user-friendly graphical user interface of the Android app, this paper reports about the algorithms used for traffic monitoring and automatic communication standard recognition, implementation aspects as well as the receiver hardware used. Finally, use-...

Journal: :The Journal of the Acoustical Society of America 1967

Journal: :Optics express 2014
Marcello Ferrera Christian Reimer Alessia Pasquazi Marco Peccianti Matteo Clerici Lucia Caspani Sai T Chu Brent E Little Roberto Morandotti David J Moss

We report an integrated all-optical radio frequency spectrum analyzer based on a ~4 cm long doped silica glass waveguide, with a bandwidth greater than 2.5 THz. We use this device to characterize the intensity power spectrum of ultrahigh repetition rate mode-locked lasers at repetition rates up to 400 GHz, and observe dynamic noise related behavior not observable with other techniques.

Journal: :Journal of the Russian Universities. Radioelectronics 2019

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