NLMS算法在射电天文中的应用

Application of NLMS Algorithm in Radio Astronomy

射电天文被动接收宇宙中极其微弱的射电信号,很容易受到人们有源业务活动的影响。为了抑制和消除射电望远镜观测过程中出现的电视信号干扰,采取了通常用在通信雷达领域的自适应抗干扰措施,利用两个辅助天线,极大地抑制了电视信号干扰,改善了信噪比,从而能够检测出微弱的射电天文信号。

Radio astronomy passively receives weak radio signals in the universe, which are susceptible to the impact of operational activities for active people. In order to suppress and eliminate the television signal interference during radio observing, the adaptive anti-jamming measures which always are applied in communication and radar field and two assistant antennae are used. Ths measures can greatly inhibit the television signal interference, improve signal-to-noise, and detect weak radio astronomy signals.