关键词: 正交频分复用, 导频消除, 相位偏差, 分布式检测, 检测反馈

Abstract: Because of the effect of channel and noise, the effect of the traditional pilot jamming scheme will decrease because of the phase deviation. In order to avoid the problem, this paper brings forward a novel scheme based on distribution detection. Firstly, detect the phase deviation of the jamming signal by the terminal distributed in the jamming area; then the result of the detection will be sent to the jamming signal transmitter, it will drive the jamming signal phase equal to the -radian offset of the transmitted pilot tone value. Simulations prove that the scheme is effective on decreasing the phase deviation of the jamming signal.

Key words: Orthogonal Frequency Division Multiplexing (OFDM), pilot nulling, phase error, distributed detection, feedback