Passive target localization method for wireless sensor node random deployment
A technology of wireless sensors and sensor nodes, applied in wireless communication, network topology, electrical components, etc., can solve problems such as non-conformance, prior knowledge required, and no prior knowledge
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[0126] According to the technical solution of the present invention, in the Qinling Golden Monkey Reserve, a monitoring area with a×b=100m×100m is selected, a base station is deployed at a distance of 50m from the border of the monitoring area, and the base station is connected to a PC. The experiment selects a target with a height of 1.75 meters, and conducts a passive positioning test on it. Under this monitoring area, the number of nodes N is increased from 30 to 300 with a step size of 15, and all nodes are numbered from 1-N, and a total of 18 real-scene target positioning experiments are carried out. In each experiment, N nodes are randomly deployed in the monitoring area, and each node position C i At the time of initialization, the vertical and horizontal coordinate ranges are between 0 and 100m, and at the same time, the transmit power of each node P i The value is randomly given at 0~-20dBm, and the path loss is therefore γ i The value is randomly given from 2 to 6....
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