Indoor positioning system and method, and communication-navigation integrated system

An indoor positioning system, comprising:

• a first leaky cable, a first positioning device and a second positioning device;
• the first positioning device is arranged at a first end of the first leaky cable;
• the first positioning device is configured to receive a configuration signal transmitted by a gateway or transmit a first positioning signal to the gateway, and the first positioning device is configured to transmit the first positioning signal through the first leaky cable, so as to enable a terminal to perform positioning according to the first positioning signal;
• the second positioning device is arranged at a second end of the first leaky cable;
• the second positioning device is configured to receive the configuration signal transmitted by the gateway or transmit a second positioning signal to the gateway, and the second positioning device is configured to transmit the second positioning signal through the first leaky cable, so as to enable the terminal to perform positioning according to the second positioning signal;
• the indoor positioning system further comprising:
• a third positioning device, a second leaky cable and a fourth positioning device,
• an output end of a combiner is connected to a first end of the second leaky cable through a feeder;
• the third positioning device is arranged between the first end of the second leaky cable and the feeder, and receives power supply from the gateway or an information source module;
• the fourth positioning device is arranged at a second end of the second leaky cable and receives power supply from the gateway or the information source module;
• the third positioning device or the fourth positioning device is configured to receive the configuration signal transmitted by the gateway or transmit a third positioning signal or a fourth positioning signal to the gateway, and transmit the third positioning signal or the fourth positioning signal through the second leaky cable, so as to enable the terminal to perform positioning according to the third positioning signal or the fourth positioning signal.