摘要
空间信号处理利用信号的不同空间来向 ,通过对接收信号进行加权求和 ,从而使阵列方向图主瓣对准期望 ,零陷对准干扰 ,大大提高数字电视信号接收信干噪比 (SINR)。而根据电视信号自身特点 ,采用基于DOA估计的开环自适应波束合成 ,实现更为容易。
According to the different DOAs of wanted signal and interferences, spatial signal processing can make the output up to the perfect SINR, that means the main lobe to the wanted signal and the deep nulls to the interferences. In order to get the weigh vector more easily, the adaptive beamforming based on DOA estimation with open loop is introduced, which adapts to the DTV receiving.
出处
《中国有线电视》
北大核心
2004年第21期33-35,共3页
China Digital Cable TV
基金
重庆大学研究生教育创新基金项目
