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dvb-s and dvb-s2 signal automatic detection system and method

A DVB-S2, DVB-S technology, applied in the transmission system, digital transmission system, baseband system components, etc., can solve the problems of consumption, multiple resources and power consumption, and achieve simplified circuit design, simple design, and low system cost. The effect of operating power consumption

Active Publication Date: 2015-09-23
SHANGHAI HIGH DEFINITION DIGITAL TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the DVB-S demodulation module and DVB-S2 demodulation module must work independently, requiring two sets of independent synchronization, equalization, and FEC modules to work at the same time, which will consume more resources and power consumption

Method used

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  • dvb-s and dvb-s2 signal automatic detection system and method
  • dvb-s and dvb-s2 signal automatic detection system and method
  • dvb-s and dvb-s2 signal automatic detection system and method

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Embodiment Construction

[0033] The following specific examples illustrate the implementation of the present invention. Those familiar with the technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0034] See Figure 1 to Figure 3 . It should be noted that the structure, ratio, size, etc. shown in the accompanying drawings in this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the implementation of the present invention Limited conditions, so it has no technical significance. Any structural modification, proportional relationship change or size adjustment should still fall under the present invention without affecting the effects and objectives that can be achieved by the present invention. The disclosed technical content must be within the scope of coverage.

[0035] In short, the tech...

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Abstract

The invention provides a system and a method for automatically detecting DVB-S signals and DVB-S2 signals. According to the system and the method, a mode control module is added in a demodulation module; whether received signals are DVB-S signals or DVB-S2 signals is detected and recognized automatically, and a corresponding signal type indication sign is given; and according to the signal type indication sign, one manner of a DVB-S processing manner and a DVB-S2 processing manner in the demodulation module is selected automatically, and received data are demodulated. Compared with a conventional scheme, the mode control module is added in the demodulation module, the design is simple, a mode of received signals is processed and judged automatically, the circuit design is simplified, resources are reused to the greatest extent, and the design cost and the system operation power consumption are reduced.

Description

Technical field [0001] The invention relates to a signal detection and recognition in the field of digital television satellite broadcast reception. In particular, it is a method that can automatically detect and identify the type of received DVB-S signal and DVB-S2 signal, which relies on DVB-S2 frame detection and DVB-S FEC decoding characteristics, which is used in the demodulation module. Background technique [0002] In recent years, wireless satellite broadcast communications have received widespread attention. DVB-S, as the mainstream satellite transmission standard of the first generation of digital satellite broadcasting, has been widely used in the world for more than ten years since its appearance. Compared with DVB-S, DVBS-2 has attracted widespread attention with its higher spectrum utilization, more advanced coding methods and system performance close to the Shannon limit. Therefore, DVB-S2 was approved by ETSI as the second-generation digital satellite broadcasti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00H04L5/00H04L25/03
CPCY02D30/50
Inventor 柯仙胜郭焕丽戴永清杨孝思薛亚萍王亮郭继经梁伟强王峰管云峰孙军戴杨
Owner SHANGHAI HIGH DEFINITION DIGITAL TECH IND
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