Anti-noise method for transmitting wireless digital broadcast signal
A technology of digital broadcasting and signal transmission, applied in the direction of digital transmission system, transmission system, shaping network in transmitter/receiver, etc.
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[0035] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0036] A schematic diagram of an embodiment of signal transmission between a transmitter and a receiver according to the anti-noise wireless digital broadcasting signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:
[0037] 1) The certain anti-noise wireless digital broadcast signal transmitter converts the multimedia data stream into a bit stream through a media data processor, and uses the scrambling code sequence generated by the feedback shift register to perform scrambling processing to form an input data bit stream;
[0038] 2) This certain anti-noise wireless digital broadcasting signal transmitter forms the FFT coded data block on the frequency domain with its input data bit stream through LDPC code, and FFT represents fast discrete Fourier transform, and the length of FFT c...
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