Novel communication receiving method for avoiding same-frequency interference based on DFT

Abstract

The invention provides a novel communication receiving method capable of avoiding same-frequency interference based on DFT (Discrete Fourier Transform). The method comprises the following steps of: 1)establishing a wireless data receiving model x containing multipath signals; 2) performing Fourier transform processing on the received signal model x, establishing a beam vector S and a diagonal matrix T thereof, and constructing an equivalent relationship by using S and T; 3) solving a frequency vector a and an amplitude vector b after conversion by using the beam vector S and the diagonal matrix T thereof; 4) substituting the converted frequency vector a into a relational expression for factorization; and 5) solving the amplitude estimation value by utilizing the solved frequency estimation value. Compared with the traditional communication receiver, the method has the advantages that the same-frequency interference can be better removed by adopting the novel receiving method, and thereceiving performance is obviously superior to that of the traditional communication receiver.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a new communication receiving method based on DFT for avoiding co-channel interference. Background technique [0002] With the development of communication technology, wireless data transmission has been applied to various devices, such as mobile phones, Internet of Things devices, etc., but the problem of co-frequency interference of one-to-multi-point wireless signals and the suppression of co-frequency interference in electronic countermeasures are problems in wireless communication. The most difficult problem to solve. Contents of the invention [0003] In order to solve the above problems, the present invention provides a new type of communication receiving method based on DFT to avoid co-channel interference, which is used to eliminate the problem of co-channel interference of wireless receivers, so as to reduce the amount of computation and facilitate Engineering...

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Problems solved by technology

[0002] With the development of communication technology, wireless data transmission has been applied to various devices, such as mobile phones, Internet of Things devices, etc., but the problem of co-frequency interference of one-to-multi-point wireless signals and the suppression of co-frequency interference in electronic countermeasures are problems in wireless communication. most difficult problem

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