A single frequency network anti-noise mobile digital broadcasting signal transmission method
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 冯巧林
- Publication Date
- 2011-11-30
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to the field of mobile communication, and more specifically relates to a single frequency network anti-noise mobile digital broadcasting signal transmission method. Background technique
[0002] Because OFDM multi-carrier transmission technology has many advantages such as simple structure, high spectrum utilization rate, and resistance to frequency selectivity and channel time variation, it has attracted much attention and has been deeply researched and applied in Xdsl, broadband mobile communication, broadband mobile local area network, It is widely used in many fields such as digital TV, mobile digital broadcasting, etc. The high peak-to-average power ratio (PAPR) of OFDM signals has high requirements on the linear range of amplifiers and digital-to-analog converters. If the linear range of the system cannot meet the signal changes, it will cause signal distortion and signal spectrum changes. , resulting in the destruction of ...