Abstract: In the system of radio location, Chan algorithm has a small computational and high accuracy in the Gaussian noise environment. However, under the NLOS, it performs degradation. Taylor series expansion method has been widely used for its high accuracy and good robustness. Since the performance of Taylor algorithm depends highly on the initial estimation, a new cooperative location algorithm based on Chan and Taylor algorithm was proposed to inherit the char acteristics of a small computational and the high accuracy and good robustness. The simulations and tests indicate that the cooperative algorithm can effective inhibit adverse noise environment in the NLOS channel, and has stable performance.

Key words: Cooperative location, TDOA, Non line of sight, Generalized cross correlation