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APPARATUS AND METHOD FOR COMPENSATION OF CHANNEL IMPULSE RESPONSE ESTIMATION ERROR IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEMS
APPARATUS AND METHOD FOR COMPENSATION OF CHANNEL IMPULSE RESPONSE ESTIMATION ERROR IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEMS
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机译:正交频分复用系统中的信道脉冲响应估计误差的补偿装置和方法
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摘要
An apparatus and a method for compensation of estimation error are provided to improve spectrum leakage and noises by compensating for estimation error of a channel impulse response before selecting a valid channel impulse response. A initial channel estimation machine(403) estimates a primary channel. By performing IFFT calculation in the presumed primary channel value, An IFFT(Inverse Fast Fourier Transform) operator(404) estimates CIR(Channel Impulse Response). A maximum power route detection part(420) detects route has the maximum power reserve about presumed CIR. A CIR error compensation part(430) uses the CIR value and the CIR estimation error function of the maximum power route in order to compensate for the CIR estimation error about all routes.
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