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本文论述了电视接收中抑制同频干扰的一种新技术。该法采用两副天线异向接收.利用矢量叠加原理调整干扰对消器,使辅天线接收的信号实现幅度、相位连续变化,从而对消主天线中的干扰信号。对消器全部采用无源器件实现,避免了已有技术的不足,在工程中得到广泛应用.效果良好,抑制量达30dB以上。本技术也适用于消除邻频干扰等高频干扰信号。
This article discusses a new technique for suppressing co-channel interference in television reception. The method uses two antennas to receive different degrees. The use of vector superposition principle to adjust the interference canceller, so that the signal received by the secondary antenna to achieve amplitude and phase continuous changes, thus eliminating the main antenna in the interference signal. Elimination of all passive devices to achieve, to avoid the shortcomings of the existing technology has been widely used in engineering. Good effect, suppression of more than 30dB. This technology is also applicable to eliminate high-frequency interference signals such as adjacent frequency interference.