Anti-interference radio signal framing modulation method for multimedia broadcast single-frequency network
A multimedia broadcasting and wireless signal technology, applied in the direction of multi-frequency code system, etc., can solve the problems of sub-channel orthogonality destruction, signal distortion, signal spectrum change, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] According to the embodiment of the single frequency network transmitter of the multimedia broadcast single frequency network anti-jamming wireless signal framing modulation method proposed by the present invention, as figure 1 shown, follow these steps:
[0031] 1) The network data manager of the single frequency network forms an FFT bit interleaving coded modulation data block in the frequency domain through multi-rate punctured convolution coding, bit interleaving, and symbol modulation of the input data bit stream, and FFT stands for Fast Discrete Fourier Transform , the length of the FFT bit-interleaved coding modulation data block is K; the coding rate of the multi-code rate punctured convolutional coding is one of 1 / 4, 1 / 2, 5 / 8, 3 / 4 and 7 / 8, and the bit interleaving Random interleaving is adopted, the symbol modulation is one of ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com