公开(公告)号：WO2007044149A2

公开(公告)日：2007-04-19

申请号：PCT/US2006/033995

申请日：2006-08-31

Applicant: TECHNOCONCEPTS, INC.

Inventor： PANFILOV, Oleg ,  HICLING, Ronald, M. ,  TURGEON, Antonio

IPC: H04B1/10 ,  H04B1/06

CPC classification number: H04B1/7101

Abstract: An interference canceller for canceling narrowband interference from a received broadband signal takes advantage of the fact that the correlation time for the narrowband interference signal will be significantly greater than the correlation time for the desirable broadband signal. The interference canceller operates by creating a replica of the narrowband interference signal in an auxiliary channel and subtracts it from the main channel to cancel the interference. The auxiliary channel has a delay time larger than the correlation time of the desirable broadband signal. In-phase and quadrature versions of the delayed signal are multiplied by respective weights and subtracted from the received signal to produce an interference-reduced signal. The weights are adjusted by an adaptive block to minimize the power in the interference-reduced output signal.

Abstract translation: 用于消除来自接收的宽带信号的窄带干扰的干扰消除器利用了窄带干扰信号的相关时间将显着大于所需宽带信号的相关时间的事实。 干扰消除器通过在辅助信道中创建窄带干扰信号的副本来操作，并从主信道中减去干扰消除以消除干扰。 辅助信道的延迟时间大于所需宽带信号的相关时间。 延迟信号的同相和正交版本乘以相应的权重并从接收信号中减去以产生干扰减小信号。 通过自适应块来调整权重以最小化干扰减小的输出信号中的功率。