High-performance polarization encoding method and encoder for satellite discontinuous communication

Abstract

The invention discloses a high-performance polarization encoding method and encoder for satellite discontinuous communication, and the method comprises the steps: S1, dividing a polarization code freezing bit and an information bit into a plurality of code blocks, carrying out the polarization encoding of each code block, storing the information bit in an ROM1, and storing the polarization encoding in an ROM2; S2, addressing the ROM2 by utilizing the position information of the information bits stored in the ROM1; s3, performing bitwise exclusive OR on a result obtained by performing bitwise exclusive OR on a certain row output by the ROM1 and the data read from the FIFO at the moment and a data result stored in the register REG, and storing an obtained numerical value back to the registerREG; and S4, writing an encoding result in the step S3 into an RAM, and starting polarization encoding of the next group of code lengths after the REG of the register is reset. And in the second part, XOR operation is carried out on the code block coded in the first part according to the butterfly graph. FPGA hardware resources consumed by the encoder are extremely low; the encoding time delay ofthe encoder is extremely low; the encoder throughput rate is high.

Description

technical field [0001] The invention relates to a high-performance polar code encoding method and an encoder capable of realizing low resource overhead, in particular to a high-performance polar encoding method and an encoder for discontinuous satellite communication, and belongs to the technical field of communication. Background technique [0002] In satellite communication, discontinuous communication is a very important communication method. Among them, for the measurement and control access channel, it is very important to ensure the reliability and effectiveness of the transmission in the discontinuous communication process. Therefore, channel coding is generally used in satellite communications to ensure highly reliable communications. For practical applications, in the process of discontinuous communication, generally hundreds of bits of information are transmitted, and there is no retransmission mechanism. Therefore, the reliability of transmission is a very high r...

AI Technical Summary

Problems solved by technology

Although the former occupies a small amount of resources, it has a large delay; the latter reduces the encoding delay, but occupies a huge amount of resources.

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