国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In order to effectively reduce and resist the influence of interference on signal reception and positioning, and improve the stability and reliability of navigation system, a signal recognition and anti-jamming method of Beidou satellite based on LSTM is designed to utilize BDS signals without distortion. The real information source of Beidou satellite is modulated to obtain the input signal of the satellite signal modulation pattern recognition algorithm. The satellite signal modulation pattern recognition algorithm based on LSTM is designed, and the model is a new LSTM network cascelled by the traditional LSTM network and the CNN network. The features between I and Q data can be extracted through the CNN network, and the sequential features in the data can be extracted and fused through the traditional LSTM network. Recognition of Beidou satellite signals. A spatial-time adaptive filter constraint algorithm combining spatial-time anti-jamming technology and time-domain anti-jamming technology is designed to realize the joint suppression of narrowband and wideband interference of Beidou satellite signals, so as to effectively improve the recognition effect. The experimental results show that the recognition accuracy of the design method is high, the highest is close to 90%, and the highest output signal-to-stem ratio is 78.52dB after anti-interference.