Decoding method and device, and system thereof

A decoding device and decoding technology, applied in the field of signal decoding, can solve the problems of high transmission power, data error, and high probability of the same Hamming distance, so as to improve decoding efficiency, reduce complexity, and improve decoding The effect on success rate

Inactive Publication Date: 2017-06-30
SHEN ZHEN KUANG CHI HEZHONG TECH LTD
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Problems solved by technology

However, the transmission power cannot be increased without a limit, so it is necessary to find an efficient and correct decoding method
[0003] In the prior art, when performing sequence detection, most of them use the Hamming distance to select the best path, and the Hamming distance needs to convert the received data into a {0,1} sequence by hard decision processing, and

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[0029] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can obviously be implemented in many other ways different from this description, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

[0030] figure 1 An exemplary block diagram illustrating a transmit signal generation process of an OvFDM system. In the OvFDM system, the transmitter first encodes the frequency domain signal according to certain rules, then converts the frequency domain signal into a time domain signal, that is, performs inverse Fourier transform, and then sends the signal out.

[0031] figure

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Abstract

The invention relates to a decoding method and device, and a system thereof. The method is used for a truncated OvFDM system, and comprises the following steps of: receiving signals to be decoded; converting the signals to be decoded into frequency-domain symbol sequences to be decoded, wherein the symbol sequences to be decoded include N symbols; generating 2<K> ideal superposition symbol sequences after K ideal symbol sequences are superposed; sequentially calculating the first distance between the current symbol y and each ideal superposition symbol sequence, wherein i=K-N; obtaining the second distance after current symbols are accumulated according to the first distance; after the last symbol y<N> is processed, obtaining an ideal symbol sequence corresponding to the smallest accumulation distance according to the second distance; and taking the ideal symbol sequence corresponding to the smallest accumulation distance as the output symbol sequence. By means of the decoding method and device, and the system thereof disclosed by the invention, the relatively high decoding success rate can be achieved under equal conditions.

Description

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Claims

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Application Information

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Owner SHEN ZHEN KUANG CHI HEZHONG TECH LTD
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