Improvement of GNSS-R Detection Capability Based On Pulse Accumulation

Target detection and imaging are important applications of using the BeiDou satellite navigation system reflection signals. This paper proposes a multi-satellite multi-target signal detection model based on Global Navigation Satellite System-Reflection (GNSS-R) bistatic radar technology. Through simulated one-dimensional range images and data curves, it is found that pulse accumulation can effectively suppress noise sidelobes. In addition, the experimental results of the multi-satellite multi-target simulation are given to verify the effectiveness of the proposed model and techniques, and at the same time, the shortcomings of the signal in the influence of multi-target Doppler peak are pointed out.