Dynamic channel equalization method for orthogonal frequency division multiplexing system based on immune network
An immune network and dynamic channel technology, applied in multi-frequency code systems, baseband system components, shaping networks in transmitters/receivers, etc., can solve problems such as system performance degradation and inability to obtain optimal values of system parameters. Achieve the effects of suppressing inter-symbol interference, eliminating multipath effects, and the number of hidden nodes is easy to determine
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[0026] The technical solution of the present invention is described in detail below in conjunction with accompanying drawing and embodiment: present embodiment is carried out under the premise of technical solution of the present invention, has provided detailed implementation mode and concrete operation process, but protection scope of the present invention It is not limited to the following examples.
[0027] The method in this embodiment is based on the OFDM system, such as figure 1 As shown, in the transmitting part of the OFDM system, training data is added after the pilot is inserted, and framed together with the source data packet. The content and insertion position of the training data are fixed, and after zero padding and IFFT After the operation of adding the cyclic prefix, it is transmitted to the wireless channel;
[0028] After wireless channel transmission, in the receiving part, the receiving training data and the receiving source data are obtained through de-c...
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