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DLZ790.53-2004 English PDF

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DLZ790.53-2004: Distribution automation using distribution line carrier systems. Part 5-3: Lower layer profilers Spread spectrum adaptive wideband (SS-AW) profile
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
DL/Z 790.53-2004English579 Add to Cart 3 days [Need to translate] Distribution automation using distribution line carrier systems. Part 5-3: Lower layer profilers Spread spectrum adaptive wideband (SS-AW) profile Valid DL/Z 790.53-2004

PDF similar to DLZ790.53-2004


Standard similar to DLZ790.53-2004

GB/T 33605   GB/T 33593   DL/T 437   DL/T 257   DL/T 790.6   DL/T 790.461   

Basic data

Standard ID DL/Z 790.53-2004 (DL/Z790.53-2004)
Description (Translated English) Distribution automation using distribution line carrier systems. Part 5-3: Lower layer profilers Spread spectrum adaptive wideband (SS-AW) profile
Sector / Industry Electricity & Power Industry Standard
Classification of Chinese Standard F21
Classification of International Standard 27.100
Word Count Estimation 18,177
Date of Issue 2004-03-09
Date of Implementation 2004-06-01
Adopted Standard IEC TS 61334-5-3-2001, IDT
Regulation (derived from) National Development and Reform Commission Notice 2004 No. 16
Summary This standard specifies the adaptive wideband spread spectrum (SS-AW) method, combining the physical layer physical and medium access control (MAC) sublayer provides services. Transmission medium for the medium and low voltage distribution network. This standard describes the MAC layer and DL/T 790. 432 described logical link control layer (LLC) phase interface. To solve medium and low voltage distribution network noise and signal attenuation characteristics, need to adopt a layered (grade) solutions. It is against this harsh environmental design communication modulation/demodulation, synchronization, equalization, error control coding, and media access control. The program includes low-level MAC layer link protocol, and data link control some of the functions related to the process. This standard describes a hierarchical solutions are built on a fast synchronous spread-spectrum physical layer, it can shorten the transfer time and implement adaptive equalization. The method with the lower link protocol, an effective error correction and detection, and powerful media access management, and for the LLC layer provides a powerful, reliable platform. The adaptive part of the method is used to compensate for time-varying channel attenuation equalization method. The receiver must select the appropriate equilibrium value, in order to adapt to changing channel characteristics to achieve optimal reception performance frames, channel characteristics may be related with the node characteristics. Equalization parameters of the received frame to adjust various quality values ??, such as the header sync Hamming distance (may have) header and data blocks received without error condition or separated expected response. Specific balancing method specified by the standard implementation OK. This trade-off cost performance, and without

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