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Dusan S. Zrnic - One of the best experts on this subject based on the ideXlab platform.

  • CPPAR - cylindrical polarimetric phased array Radar system design
    2011 IEEE RadarCon (RADAR), 2011
    Co-Authors: Michele Galletti, Dusan S. Zrnic, Guifu Zhang, Dick Doviak, Jerry Crain
    Abstract:

    The National Severe Storms Laboratory (NOAA-NSSL) and the Advanced Radar Research Center at the University of Oklahoma (OU-ARRC) are presently involved in the design, development and construction of a cylindrical polarimetric phased array Radar (CPPAR) to demonstrate polarimetric capabilities for weather sensing within the Multi-function Phased Array Radar (MPAR) project. In this paper we present preliminary system design of CPPAR.

  • Polarimetric Phased Array Radar for weather measurement: Issues and solutions
    2011 IEEE RadarCon (RADAR), 2011
    Co-Authors: Guifu Zhang, Dusan S. Zrnic, Robert D. Palmer, Lei Lei, Richard J. Doviak, Yasser Al-rashid
    Abstract:

    The commonly used planar phased array Radar has a number of issues in making polarimetric measurements, including increase of beam width, sensitivity loss and polarization coupling. The Cylindrical Polarimetric Phased Array Radar (CPPAR) with commutating scan is proposed to avoid these deficiencies.

  • polarimetric phased array Radar for weather measurement a planar or cylindrical configuration
    Journal of Atmospheric and Oceanic Technology, 2011
    Co-Authors: Guifu Zhang, Dusan S. Zrnic, Robert D. Palmer, Lei Lei, Richard J. Doviak, Yasser Alrashid
    Abstract:

    Abstract This paper suggests a cylindrical configuration for agile beam polarimetric Phased-Array Radar (PPAR) for weather surveillance. The most often used array configuration for PAR is a planar array antenna. The planar configuration, however, has significant deficiencies for polarimetric measurements, as well as other limitations, such as increases in beamwidth, decreases of sensitivity, and changes in the polarization basis when the beam scans off its broadside. The cylindrical polarimetric Phased-Array Radar (CPPAR) is proposed to avoid these deficiencies. The CPPAR principle and potential performance are demonstrated through theoretical analysis and simulation. It is shown that the CPPAR has the advantage of a scan-invariant polarization basis, and thus avoids the inherent limitations of the planar PPAR (i.e., PPPAR).

  • agile beam phased array Radar for weather observations
    Bulletin of the American Meteorological Society, 2007
    Co-Authors: Dusan S. Zrnic, J F Kimpel, D E Forsyth, Alan Shapiro, G Crain, R Ferek, J Heimmer, William E Benner, T J Mcnellis, R J Vogt
    Abstract:

    Weather Radars with conventional antenna cannot provide desired volume scan updates at intervals of one minute or less, which is essential for significant improvement in warning lead time of impending storm hazards. The agile-beam multimission phased array Radar (MPAR) discussed herein is one potential candidate that can provide faster scanning. It also offers a unique potential for multipurpose use to not only sample weather, but support air traffic needs and track noncooperative airplanes, thus making it an affordable option. After introducing the basic idea behind electronic beam steering, the needs for frequent observations of convective weather are explained. Then, advantages of the phased array Radar (PAR) for weather monitoring and improving data quality are examined. To explore and develop weather-related applications of the PAR, a National Weather Radar Testbed (NWRT) has been established in Norman, Oklahoma. The NWRT's main purpose is to address the advanced capabilities anticipated within the n...

Long Teng - One of the best experts on this subject based on the ideXlab platform.

Teng Long - One of the best experts on this subject based on the ideXlab platform.

  • A HPRF stepped frequency phased array Radar system design
    IET Conference Publications, 2009
    Co-Authors: Dazhi Zeng, Quanhua Liu, Teng Long
    Abstract:

    The design for a high PRE, stepped frequency, phased array Radar is presented. Phased array Radar using stepped frequency waveform brings several benefits. This paper gives design principle for this Radar system and key implementation methods. (3 pages)

  • Design and Realization of Phased Array Radar Optical Fiber Transmission System
    Journal of Beijing Institute of Technology, 2007
    Co-Authors: Shan-qing Hu, Teng Long
    Abstract:

    One optical fiber transmission system is designed. The modularization optical fiber transmission adapters were utilized in the system, so the system structure could be flexibly scalable. The sub-array adapter and signal processor adapter were designed and realized utilizing the new field programmable gate array (FPGA) which could drive the optical transceiver. The transmission agreement was designed based on the data stream. In order to solve the signal synchronization problem of the optical fiber transmitted phased array Radar, a method named synchronous clock was designed. The fiber transmission error code rate of the system was zero with an experimental transmission velocity of 800Mbit/s. The phased array Radar system has detected the airplane target, thus validated the feasibility of the design method.

Guifu Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Phased-Array Radar System Simulator (PASIM): Development and Simulation Result Assessment
    MDPI AG, 2019
    Co-Authors: Sudantha Perera, Guifu Zhang, Yan Zhang, Richard Doviak
    Abstract:

    In this paper, a system-specific Phased-Array Radar system simulator was developed, based on a time-domain modeling and simulation method, mainly for system performance evaluation of the future Spectrum-Efficient National Surveillance Radar (SENSR). The goal of the simulation study was to establish a complete data quality prediction method based on specific Radar hardware and electronics designs. The distributed weather targets were modeled using a covariance matrix-based method. The data quality analysis was conducted using Next-Generation Radar (NEXRAD) Level-II data as a basis, in which the impact of various pulse compression waveforms and channel electronic instability on weather Radar data quality was evaluated. Two typical weather scenarios were employed to assess the simulator’s performance, including a tornado case and a convective precipitation case. Also, modeling of some demonstration systems was evaluated, including a generic weather Radar, a planar polarimetric Phased-Array Radar, and a cylindrical polarimetric Phased-Array Radar. Corresponding error statistics were provided to help multifunction Phased-Array Radar (MPAR) designers perform trade-off studies

  • CPPAR - cylindrical polarimetric phased array Radar system design
    2011 IEEE RadarCon (RADAR), 2011
    Co-Authors: Michele Galletti, Dusan S. Zrnic, Guifu Zhang, Dick Doviak, Jerry Crain
    Abstract:

    The National Severe Storms Laboratory (NOAA-NSSL) and the Advanced Radar Research Center at the University of Oklahoma (OU-ARRC) are presently involved in the design, development and construction of a cylindrical polarimetric phased array Radar (CPPAR) to demonstrate polarimetric capabilities for weather sensing within the Multi-function Phased Array Radar (MPAR) project. In this paper we present preliminary system design of CPPAR.

  • Polarimetric Phased Array Radar for weather measurement: Issues and solutions
    2011 IEEE RadarCon (RADAR), 2011
    Co-Authors: Guifu Zhang, Dusan S. Zrnic, Robert D. Palmer, Lei Lei, Richard J. Doviak, Yasser Al-rashid
    Abstract:

    The commonly used planar phased array Radar has a number of issues in making polarimetric measurements, including increase of beam width, sensitivity loss and polarization coupling. The Cylindrical Polarimetric Phased Array Radar (CPPAR) with commutating scan is proposed to avoid these deficiencies.

  • polarimetric phased array Radar for weather measurement a planar or cylindrical configuration
    Journal of Atmospheric and Oceanic Technology, 2011
    Co-Authors: Guifu Zhang, Dusan S. Zrnic, Robert D. Palmer, Lei Lei, Richard J. Doviak, Yasser Alrashid
    Abstract:

    Abstract This paper suggests a cylindrical configuration for agile beam polarimetric Phased-Array Radar (PPAR) for weather surveillance. The most often used array configuration for PAR is a planar array antenna. The planar configuration, however, has significant deficiencies for polarimetric measurements, as well as other limitations, such as increases in beamwidth, decreases of sensitivity, and changes in the polarization basis when the beam scans off its broadside. The cylindrical polarimetric Phased-Array Radar (CPPAR) is proposed to avoid these deficiencies. The CPPAR principle and potential performance are demonstrated through theoretical analysis and simulation. It is shown that the CPPAR has the advantage of a scan-invariant polarization basis, and thus avoids the inherent limitations of the planar PPAR (i.e., PPPAR).

R J Vogt - One of the best experts on this subject based on the ideXlab platform.

  • agile beam phased array Radar for weather observations
    Bulletin of the American Meteorological Society, 2007
    Co-Authors: Dusan S. Zrnic, J F Kimpel, D E Forsyth, Alan Shapiro, G Crain, R Ferek, J Heimmer, William E Benner, T J Mcnellis, R J Vogt
    Abstract:

    Weather Radars with conventional antenna cannot provide desired volume scan updates at intervals of one minute or less, which is essential for significant improvement in warning lead time of impending storm hazards. The agile-beam multimission phased array Radar (MPAR) discussed herein is one potential candidate that can provide faster scanning. It also offers a unique potential for multipurpose use to not only sample weather, but support air traffic needs and track noncooperative airplanes, thus making it an affordable option. After introducing the basic idea behind electronic beam steering, the needs for frequent observations of convective weather are explained. Then, advantages of the phased array Radar (PAR) for weather monitoring and improving data quality are examined. To explore and develop weather-related applications of the PAR, a National Weather Radar Testbed (NWRT) has been established in Norman, Oklahoma. The NWRT's main purpose is to address the advanced capabilities anticipated within the n...