Multi-carrier mode low-complexity channel noise-reducing method and device thereof in wireless local area network (WLAN)
一种无线局域网、低复杂度的技术,应用在信道估算、多频码系统、发射机/接收机中的整形网络等方向,能够解决解调性能差等问题
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[0028] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.
[0029]As mentioned above, the receiver will select the appropriate Wiener filtering method and coefficients according to the channel power delay characteristics in the actual transmission environment, that is to say, the receiver must estimate the channel impulse response in the time domain to perform multipath detection, but often the Weaker multipath components are not easy to be identified, so the present invention avoids the process of selecting Wiener coefficients by performing multipath detection on time-domain channels, and instead selects several groups of pre-stored Wiener coefficients according to the set The method performs Wiener filtering on the noisy frequency domain channel, and then uses certain criteria to select the Wiener coefficient and the corresponding filtering method that can...
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