Abstract: An object of the present invention is to implement accurate positioning of a mobile communication terminal even in an environment in which delay waves are included in radio waves arriving at the mobile communication terminal from radio wave sources.

Abstract: The present invention easily evaluates the positioning accuracy by using fewer signal sources.

Abstract: A positioning system accurately estimates transmission times of signals from a signal transmitter and measures a position of a receiver on the basis of the transmission times.

Abstract: A receiving station used in a wireless communication system receives information from one or more transmitting stations. The receiving station comprises a receiving unit (112) configured to receive information containing ID information of a transmitting station, and a data extracting unit (1011) configured to extract the ID information from the received information. Transmit timing sequence acquiring means (2012, 2013 and 2014) of the receiving station estimates a transmit timing sequence (Hs) of the transmitting station based on the extracted ID information. Synchronizing means (2014) of the receiving station brings the receive timing of the receiving station in synchronization with transmit timing of the transmitting station based on the transmit timing sequence.

Abstract: A time-varying multi-path generating apparatus that generates time-varying characteristics of propagation path parameters, a multi-path fading simulator, and a multi-path generating method are disclosed. The generating apparatus for simulating multi-path fluctuations in radio communications consists of a parameter control unit for controlling generation conditions of propagation paths, a data storage unit for storing propagation path generation parameters and data files, and a propagation path generating unit for generating time-varying propagation paths. Multiple time-varying amplitude functions and multiple time-varying phase functions are generated based on the data files, the propagation path generation parameters, and random numbers generated by a random number generating unit. The time-varying amplitude functions are aligned serially in the time domain such that a time-varying shadow amplitude function is obtained, which is repeated N times where N represents the number of propagation paths.

Abstract: A positioning system accurately estimates transmission times of signals from a signal transmitter and measures a position of a receiver on the basis of the transmission times.

Abstract: The present invention easily evaluates the positioning accuracy by using fewer signal sources.

Abstract: An object of the present invention is to implement accurate positioning of a mobile communication terminal even in an environment in which delay waves are included in radio waves arriving at the mobile communication terminal from radio wave sources.

Abstract: A receiving station used in a wireless communication system receives information from one or more transmitting stations. The receiving station comprises a receiving unit (112) configured to receive information containing ID information of a transmitting station, and a data extracting unit (1011) configured to extract the ID information from the received information. Transmit timing sequence acquiring means (2012, 2013 and 2014) of the receiving station estimates a transmit timing sequence (Hs) of the transmitting station based on the extracted ID information. Synchronizing means (2014) of the receiving station brings the receive timing of the receiving station in synchronization with transmit timing of the transmitting station based on the transmit timing sequence.

Abstract: A time-varying multi-path generating apparatus that generates time-varying characteristics of propagation path parameters, a multi-path fading simulator, and a multi-path generating method are disclosed. The generating apparatus for simulating multi-path fluctuations in radio communications consists of a parameter control unit for controlling generation conditions of propagation paths, a data storage unit for storing propagation path generation parameters and data files, and a propagation path generating unit for generating time-varying propagation paths. Multiple time-varying amplitude functions and multiple time-varying phase functions are generated based on the data files, the propagation path generation parameters, and random numbers generated by a random number generating unit. The time-varying amplitude functions are aligned serially in the time domain such that a time-varying shadow amplitude function is obtained, which is repeated N times where N represents the number of propagation paths.