Positioning system of positioning wireless communication apparatus

A positioning system of positioning a wireless communication apparatus, said positioning system comprising:

• a transmitting device for transmitting N signals, which each has a respective frequency band, to the wireless communication apparatus, N being an integer larger than 6;
• a receiving device for receiving N returned signals, which each corresponds to one of the N transmitted signals, from the wireless communication apparatus;
• and
• a processing device, electrically coupled to the receiving device, for generating N positioning values in accordance with the N returned signals, dividing the N positioning values into M groups of positioning values where M is an integer larger than or equal to 3, selecting K groups of positioning values from the M groups of positioning values in accordance with an error algorithm where K is a positive integer less than or equal to M, and calculating an average positioning value of the selected K groups of positioning values to position the wireless communication apparatus, wherein the error algorithm comprises steps of:
• by the least square algorithm, generating M linear regression lines, which each corresponds to one the M groups of positioning values, according to the M groups of positioning values, and selecting K groups of positioning values from the M groups of positioning values according to the M slopes of the M linear regression lines.