The Experts below are selected from a list of 3699 Experts worldwide ranked by ideXlab platform

Jingdong Chen - One of the best experts on this subject based on the ideXlab platform.

  • a fast recursive algorithm for optimum sequential signal detection in a blast system
    IEEE Transactions on Signal Processing, 2003
    Co-Authors: Jacob Benesty, Yiteng Huang, Jingdong Chen
    Abstract:

    Bell Laboratories layered space-time (BLAST) wireless systems are multiple-antenna communication schemes that can achieve very high spectral efficiencies in scattering environments with no increase in bandwidth or transmitted power. The most popular and, by far, the most practical architecture is the so-called vertical BLAST (V-BLAST). The signal detection algorithm of a V-BLAST system is computationally very intensive. If the number of transmitters is M and is equal to the number of receivers, this complexity is proportional to M/sup 4/ at each sample time. We propose a very simple and efficient algorithm that reduces the complexity by a factor of M.

  • a fast recursive algorithm for optimum sequential signal detection in a blast system
    International Conference on Acoustics Speech and Signal Processing, 2003
    Co-Authors: Jacob Benesty, Yiteng Huang, Jingdong Chen
    Abstract:

    BLAST (Bell Laboratories layered Space-Time) wireless systems are multiple-antenna communication schemes which can achieve very high spectral efficiencies in scattering environments, with no increase in bandwidth or transmitted power. The most popular and, by far, the most practical architecture is the so-called vertical BLAST (V-BLAST). The signal detection algorithm of a V-BLAST system is computationally very intensive. If the number of transmitters is M and is equal to the number of receivers, this complexity is proportional to M/sup 4/ at each sample time. In this paper, we propose a simple and very efficient algorithm that reduces the complexity by a factor of M.

Jacob Benesty - One of the best experts on this subject based on the ideXlab platform.

  • a fast recursive algorithm for optimum sequential signal detection in a blast system
    IEEE Transactions on Signal Processing, 2003
    Co-Authors: Jacob Benesty, Yiteng Huang, Jingdong Chen
    Abstract:

    Bell Laboratories layered space-time (BLAST) wireless systems are multiple-antenna communication schemes that can achieve very high spectral efficiencies in scattering environments with no increase in bandwidth or transmitted power. The most popular and, by far, the most practical architecture is the so-called vertical BLAST (V-BLAST). The signal detection algorithm of a V-BLAST system is computationally very intensive. If the number of transmitters is M and is equal to the number of receivers, this complexity is proportional to M/sup 4/ at each sample time. We propose a very simple and efficient algorithm that reduces the complexity by a factor of M.

  • a fast recursive algorithm for optimum sequential signal detection in a blast system
    International Conference on Acoustics Speech and Signal Processing, 2003
    Co-Authors: Jacob Benesty, Yiteng Huang, Jingdong Chen
    Abstract:

    BLAST (Bell Laboratories layered Space-Time) wireless systems are multiple-antenna communication schemes which can achieve very high spectral efficiencies in scattering environments, with no increase in bandwidth or transmitted power. The most popular and, by far, the most practical architecture is the so-called vertical BLAST (V-BLAST). The signal detection algorithm of a V-BLAST system is computationally very intensive. If the number of transmitters is M and is equal to the number of receivers, this complexity is proportional to M/sup 4/ at each sample time. In this paper, we propose a simple and very efficient algorithm that reduces the complexity by a factor of M.

A A Stark - One of the best experts on this subject based on the ideXlab platform.

  • the Bell Laboratories 13 co survey longitude velocity maps
    Astrophysical Journal Supplement Series, 2001
    Co-Authors: Youngung Lee, A A Stark, Hyungoo Kim, Daesik Moon
    Abstract:

    A survey is presented of the Galactic plane in the J = 1-0 transition of 13CO. About 73,000 spectra were obtained with the 7 m telescope at Bell Laboratories over a 10 yr period. The coverage of the survey is (l, b) = (-5° to 117°, -1° to 1°), or 244 deg2, with a grid spacing of 3' for |b| 05. The data presented here have been resampled onto a 3' grid. For 0.68 km s-1 channels, the rms noise level of the survey is 0.1 K on the T scale. The raw data have been transformed into FITS format, and all the reduction processes, such as correcting for emission in the reference positions, baseline removal, and interpolation, were conducted within IRAF using the FCRAO task package and additional programs. The reduced data are presented here in the form of longitude-velocity color maps at each latitude. These data allow identification and classification of molecular clouds with masses in excess of ~103 M☉ throughout the first quadrant of the Galaxy. Spiral structure is manifested by the locations of the largest and brightest molecular clouds.

  • the Bell Laboratories 13 co survey longitude velocity maps
    arXiv: Astrophysics, 2000
    Co-Authors: Youngung Lee, A A Stark, Hyungoo Kim, Daesik Moon
    Abstract:

    A survey is presented of the Galactic plane in the J=1-0 transition of (13)CO. About 73,000 spectra were obtained with the 7 m telescope at Bell Laboratories over a ten-year period. The coverage of survey is (l, b) = (-5 to 117, -1 to +1), or 244 square degrees, with a grid spacing of 3' for |b| 0.5. The data presented here have been resampled onto a 3' grid. For 0.68 km/s channels, the rms noise level of the survey is 0.1 K on the $T_R^*$ scale. The raw data have been transformed into FITS format, and all the reduction processes, such as correcting for emission in the reference positions, baseline removal and interpolation were conducted within IRAF using the FCRAO task package and additional programs. The reduced data are presented here in the form of longitude-velocity color maps at each latitude. These data allow identification and classification of molecular clouds with masses in excess of ~ 1,000 solar masses throughout the first quadrant of the Galaxy. Spiral structure is manifested by the locations of the largest and brightest molecular clouds.

  • the Bell Laboratories h i survey
    Astrophysical Journal Supplement Series, 1992
    Co-Authors: A A Stark, Charles F Gammie, R W Wilson, John Bally, R A Linke, Carl Heiles, Mark Hurwitz
    Abstract:

    We present a galactic survey which to date consists of 73,000 positions covering −5° < l < 122°, −1° < b < 1° , observed in the J=1 → 0 line of 13CO to an rms noise level of 0.15 K in 0.68 km s−1 channels, using the 7 m antenna at Crawford Hill. It is shown that the internal velocity dispersions of molecular clouds tend to vary inversely with galactocentric radius.

Yiteng Huang - One of the best experts on this subject based on the ideXlab platform.

  • a fast recursive algorithm for optimum sequential signal detection in a blast system
    IEEE Transactions on Signal Processing, 2003
    Co-Authors: Jacob Benesty, Yiteng Huang, Jingdong Chen
    Abstract:

    Bell Laboratories layered space-time (BLAST) wireless systems are multiple-antenna communication schemes that can achieve very high spectral efficiencies in scattering environments with no increase in bandwidth or transmitted power. The most popular and, by far, the most practical architecture is the so-called vertical BLAST (V-BLAST). The signal detection algorithm of a V-BLAST system is computationally very intensive. If the number of transmitters is M and is equal to the number of receivers, this complexity is proportional to M/sup 4/ at each sample time. We propose a very simple and efficient algorithm that reduces the complexity by a factor of M.

  • a fast recursive algorithm for optimum sequential signal detection in a blast system
    International Conference on Acoustics Speech and Signal Processing, 2003
    Co-Authors: Jacob Benesty, Yiteng Huang, Jingdong Chen
    Abstract:

    BLAST (Bell Laboratories layered Space-Time) wireless systems are multiple-antenna communication schemes which can achieve very high spectral efficiencies in scattering environments, with no increase in bandwidth or transmitted power. The most popular and, by far, the most practical architecture is the so-called vertical BLAST (V-BLAST). The signal detection algorithm of a V-BLAST system is computationally very intensive. If the number of transmitters is M and is equal to the number of receivers, this complexity is proportional to M/sup 4/ at each sample time. In this paper, we propose a simple and very efficient algorithm that reduces the complexity by a factor of M.

Daesik Moon - One of the best experts on this subject based on the ideXlab platform.

  • the Bell Laboratories 13 co survey longitude velocity maps
    Astrophysical Journal Supplement Series, 2001
    Co-Authors: Youngung Lee, A A Stark, Hyungoo Kim, Daesik Moon
    Abstract:

    A survey is presented of the Galactic plane in the J = 1-0 transition of 13CO. About 73,000 spectra were obtained with the 7 m telescope at Bell Laboratories over a 10 yr period. The coverage of the survey is (l, b) = (-5° to 117°, -1° to 1°), or 244 deg2, with a grid spacing of 3' for |b| 05. The data presented here have been resampled onto a 3' grid. For 0.68 km s-1 channels, the rms noise level of the survey is 0.1 K on the T scale. The raw data have been transformed into FITS format, and all the reduction processes, such as correcting for emission in the reference positions, baseline removal, and interpolation, were conducted within IRAF using the FCRAO task package and additional programs. The reduced data are presented here in the form of longitude-velocity color maps at each latitude. These data allow identification and classification of molecular clouds with masses in excess of ~103 M☉ throughout the first quadrant of the Galaxy. Spiral structure is manifested by the locations of the largest and brightest molecular clouds.

  • the Bell Laboratories 13 co survey longitude velocity maps
    arXiv: Astrophysics, 2000
    Co-Authors: Youngung Lee, A A Stark, Hyungoo Kim, Daesik Moon
    Abstract:

    A survey is presented of the Galactic plane in the J=1-0 transition of (13)CO. About 73,000 spectra were obtained with the 7 m telescope at Bell Laboratories over a ten-year period. The coverage of survey is (l, b) = (-5 to 117, -1 to +1), or 244 square degrees, with a grid spacing of 3' for |b| 0.5. The data presented here have been resampled onto a 3' grid. For 0.68 km/s channels, the rms noise level of the survey is 0.1 K on the $T_R^*$ scale. The raw data have been transformed into FITS format, and all the reduction processes, such as correcting for emission in the reference positions, baseline removal and interpolation were conducted within IRAF using the FCRAO task package and additional programs. The reduced data are presented here in the form of longitude-velocity color maps at each latitude. These data allow identification and classification of molecular clouds with masses in excess of ~ 1,000 solar masses throughout the first quadrant of the Galaxy. Spiral structure is manifested by the locations of the largest and brightest molecular clouds.