Convex optimization target positioning method based on quantization TOA measurement

The invention provides a convex optimization target positioning method based on quantized TOA measurement, in an established target positioning model, a target node communicates with different sensor nodes to obtain TOA measurement based on arrival time, the measured value is quantized according to a preset standard, the obtained quantized value is transmitted to a fusion center through a non-ideal channel. And then an objective function for optimization is established, a non-convex optimization problem is changed into a convex optimization problem through a series of conversion, and calculated to obtain estimation of a target position by using a measured value transmitted to a fusion center. According to the method, communication quantization and unreliable transmission factors between the fusion center and the sensor nodes in the wireless sensor network are effectively embedded into target positioning of the wireless sensor network, and the actual application condition is reflected more accurately. 本发明提供了一种