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pro vyhledávání: '"Jeffrey C. Dill"'
Autor:
Jeffrey C. Dill, Fatemeh Khalili
Publikováno v:
ICNC
In this work we propose a coded modulation technique which combines different types of modulation including QPSK, QAM, 4D-QAM, and OFDM modulation with a short block systematic turbo code. We aim to achieve exceptional energy efficiency in extremely
Autor:
Fatemeh Khalili, Jeffrey C. Dill
Publikováno v:
CCNC
In this work we propose a coded modulation technique which combines QPSK and OFDM modulation with a low rate, short block systematic turbo code. We aim to achieve exceptional energy efficiency in extremely noisy environments, where moderate data rate
Autor:
Jeffrey C. Dill, Mohammed AlMahamdy
Publikováno v:
WCNC
In pursuing of optimizing the performance of the Turbo decoding, early stopping (ES) rules are deployed to reduce decoding latency and save resources. The aim of these rules is the reduction of the average number of iterations at a tolerable performa
Autor:
Jeffrey C. Dill, Kai-jen Cheng
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 52:5765-5770
This paper proposes a lossless to lossy compression scheme for hyperspectral images based on dual-tree Binary Embedded Zerotree Wavelet (BEZW) algorithm. The algorithm adapts Karhunen-Loeve Transform and Discrete Wavelet Transform to achieve 3-D inte
Autor:
Kai-jen Cheng, Jeffrey C. Dill
Publikováno v:
Journal of Computer and Communications. :31-36
The paper describes an efficient lossy and lossless three dimensional (3D) image compression of hyperspectral images. The method adopts the 3D spatial-spectral hybrid transform and the proposed transform-based coder. The hybrid transforms are that Ka
Autor:
Mohammed AlMahamdy, Jeffrey C. Dill
Publikováno v:
CCWC
Early stopping (ES) methods reduce the average number of iterations required for decoding turbo codes. These methods monitor the generated outputs along the iterations to terminate the loop once this output reaches a satisfactory level of reliability
Publikováno v:
SPIE Proceedings.
Hyperspectral imagery (HSI) offers numerous advantages over traditional sensing modalities with its high spectral content that allows for classification, anomaly detection, target discrimination, and change detection. However, this imaging modality
Publikováno v:
Digital Signal Processing. 12:252-261
Song, X., Dill, J., and Lindsey, A. R., Bounds on the Minimum Distance of High Dimensional Circular Trellis-Coded Modulation, Digital Signal Processing12 (2002) 252–261 This paper derives the upper and lower bounds on the minimum distance of 4-ary
Publikováno v:
Digital Signal Processing. 11:159-167
Alder, F. A., Dill, J. C., and Lindsey, A. R., Performance of Simplex Signaling in Circular Trellis-Coded Modulation, Digital Signal Processing11 (2001) 159–167 This paper presents measures of performance of simplex signaling in a circular trellis-
Autor:
Jeffrey C. Dill, Kai-jen Cheng
Publikováno v:
SPIE Proceedings.
In this paper, a lossless to lossy transform based image compression of hyperspectral images based on Integer Karhunen-Loeve Transform (IKLT) and Integer Discrete Wavelet Transform (IDWT) is proposed. Integer transforms are used to accomplish reversi