A signal enhancement method of vehicle wireless sensor network (WSN) based on adaptive filter is designed in this paper. By analyzing the vehicle WSN structure and node deployment mode, the signal operation process of WSN in the vehicle is determined, the relationship between Received Signal Strength Indication (RSSI) and distance is analyzed, and the signal of vehicle WSN is acquired. In order to reduce the workload of signal enhancement, set the signal strength judgment conditions of vehicle WSN, among the collected signals, the signal with poor intensity is taken as the research object. On this basis, the adaptive filter is used to remove the signal noise of vehicle WSN and enhance the signal strength. The signal enhanced by the proposed method has less noise and good stability.
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