1. A navigation method, adapted for an autonomous electronic apparatus, comprising: receiving a calling signal through a wireless sensor network, wherein the calling signal is from a target; analyzing a position relationship between the target and the autonomous electronic apparatus to generate a first speed; capturing an image set; analyzing an image relationship between the image set and the target to generate a second speed; calculating a weighting value related to the position relationship; calculating a moving speed according to the weighting value, the first speed and the second speed; and controlling a moving status of the autonomous electronic apparatus to move toward the target via the moving speed.