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  Authors

Ramesh Nandha Kumar,T Prasad

  Keywords

Antenna, Radar, MST Radar, Atmospheric turbulance

  Abstract


The present semi-active phased array MST radar (32 by 32 Yagi-Uda antennae, total 1024 antennae) operating at the frequency of 53 MHz, has been augmented recently as fully-active phased array (FAPA) radar to study the atmospheric dynamics and turbulence in detail. During the last 25 years of operation as semi-active phased array (SAPA), the radar beam, with 3? beam width, could be tilted only in the north-south and east-west planes and hence the three dimensional spatial properties of turbulence and its evolution in time could not be studied. In the SAPA mode, each row/column of 32 antennae was powered by a single transmitter (9 � 180 kW of peak power) through electronic power dividers and couplers and the received echoes collected by a single (sometimes 2 receivers) receiver were processed to determine the characteristics of atmospheric turbulence. In the present case of FAPA, each and every antenna is powered individually with peak power of 1kW and a receiver module is attached. With this facility, it can be controlled the transmit beam pattern as well as its pointing direction so that a full four dimensional characteristics (space and time) of atmospheric turbulence can be studied. The main aim of the present project work is to study the generation, evolution and dissipation mechanisms of atmospheric turbulence and its imaging using multi power-patterns of the FAPA system and many digital receivers.

  IJCRT's Publication Details

  Unique Identification Number - IJCRT2011187

  Paper ID - 200895

  Author type - Indian Author

  Page Number(s) - 1549-1557

  Pubished in - Volume 8 | Issue 11 | November 2020

  DOI (Digital Object Identifier) -   

  No Of Downloads - 1351

  Author Country - 517502, India, Tirupati, Tirupati, India, Science & Technology

  Publisher Name - IJPUBLICATION | www.ijcrt.org | ISSN : 2320-2882

  E-ISSN Number - 2320-2882

  Published Paper PDF : - http://www.ijcrt.org/papers/IJCRT2011187

  Published Paper URL: : - http://ijcrt.org/viewfull.php?&p_id=IJCRT2011187

  Published Paper PDF Downlaod: - download.php?file=IJCRT2011187

  Cite this article

Ramesh Nandha Kumar,T Prasad,   "FULL ACTIVE PHASED ARRAY MST (53 MHZ) RADAR DETERMINATION OF CHARACTERISTICS OF ATMOSPHERIC TURBULENCE", International Journal of Creative Research Thoughts (IJCRT), ISSN:2320-2882, Volume.8, Issue 11, pp.1549-1557, November 2020, Available at :http://www.ijcrt.org/papers/IJCRT2011187.pdf

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