Distributed adaptive direct positioning method under color receiving signal

The invention belongs to the field of signal processing, and relates to a passive positioning method in signal processing and particularly relates to a distributed adaptive direct positioning method under a color receiving signal in order to solve defects that the existing positioning method is poor in positioning performance in a color receiving signal condition and to improve the positioning performance. A transmitter position estimation value is obtained sequentially through data acquisition, first data exchange, adaptive operation, second data exchange, combination and iteration ending. A new cost function is provided, the method is also applicable in a white signal receiving condition, and performance of the two is equal; no gain control factor is needed, extra gain control factor iteration is not needed during each position iteration process, and the positioning calculation amount is effectively reduced; and in the color receiving signal condition, positioning performance of the positioning method provided by the invention is greatly improved.