A dft-based communication receiving method for avoiding co-channel interference
A technology of communication reception and co-frequency interference, which is applied in the field of communication, can solve the problems of co-frequency interference of wireless signals, co-frequency interference suppression of wireless communication, etc., and achieve the effects of reduced computation, improved performance, and strong correlation of frequency domain information
Active Publication Date: 2021-06-11
SOUTHEAST UNIV
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[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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[0062] The invention provides a DFT-based communication receiving method for avoiding co-frequency interference, which is used to eliminate the problem of co-frequency interference of wireless receivers, so as to reduce the amount of calculation and facilitate engineering realization under the premise of ensuring the accuracy of angle measurement.
[0063] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited by the examples.
[0064] A communication receiving method based on DFT to avoid co-channel interference, such as figure 1 As shown, the received signal estimation method includes the following steps:
[0065] Step 1: Establish a wireless data receiving model x including multipath signals;
[0066] Step 2: Perform Fourier transform processing on the received signal model x, use the obtained Fourier transform data to establish a beam vector S and its diagonal matrix T, and use S and T to const...
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The present invention proposes a novel communication receiving method based on DFT to avoid co-channel interference. The implementation steps are: 1) establishing a wireless data receiving model x including multipath signals; 2) Fouriering the received signal model x Leaf transformation process, set up beam vector S and its diagonal matrix T, and construct equivalence relationship with S and T; 3) Utilize beam vector S and its diagonal matrix T, obtain frequency vector a and amplitude vector b after conversion; 4) Substituting the converted frequency vector a into the relational expression for factorization to obtain the frequency estimate of the target 5) Utilizing the solved frequency estimate to solve the amplitude estimate Compared with traditional communication receivers, the present invention adopts The new receiving method can better remove co-channel interference, and the receiving performance is obviously better than that of traditional communication receivers.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a DFT-based communication receiving method 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 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 work while ensuring ...
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IPC IPC(8): H04B1/10
CPCH04B1/1027
Inventor 王开高怡婷
Owner SOUTHEAST UNIV