Research on Anti Interference Technology of Beidou Receiver based on LBFGS Quasi-Newton Method

In China, BeiDou navigation satellite system is a Global Navigation Satellite System (GNSS) which was developed by China only. The BeiDou receiver uses a pseudo range transmission for anti interference technology. However, the conventional anti interference technique leads to the deviation of GNSS receiver ranging score which was complex to the enhancement of higher precision ranging receiver. Therefore, this research proposes a Limit-Broyden-Fletcher-Goldfarb-Shanno Quasi-Newton (LBFGS-QN) method for anti interference technology of BeiDou receiver. The LBFGS-QN improves the BeiDou receiver performance through optimization of efficient filtering interference functions which improving its navigation and communications. The LBFGS-QN improves the reception capacity for adjustment of signal processing parameter sets according to the interference pattern, guaranteeing signal stability at lesser Signal-to-Noise Ratio (SNR). The LBFGS-QN method performance is calculated by the following metrics such as SNR, Bit Error Rate (BER), Mean Squared Error (MSE) and Root Mean Squared Error (RMSE). The LBFGS-QN achieves SNR of 16.0, BER of 0.0059, MSE of 0.010 and RMSE of 0.055 for the signal amplitude of 250 dB which is better than state-of-art algorithms.