Station positioning system, station positioning device, station positioning method, and station positioning program

An installed station determination device that determines an installed station of a RIS reflector when an electromagnetic wave transmitted from a transmission point is relayed by reflection to a reception point in a reception area shielded by a line of sight,

• the installed station determination device comprising:
• first calculation circuitry configured to calculate, on a basis of a ray tracing result obtained by performing ray tracing from the transmission point with respect to an area including an installed station candidate area of the RIS reflector capable of propagating an electromagnetic wave from the transmission point to the reception area in the line of sight after one reflection, propagation path power and a reflection point position of each propagation path that propagates an electromagnetic wave from the transmission point to the reception area in the line of sight after one reflection in the installed station candidate area;
• installed station position determination circuitry configured to determine a reflection point position of the propagation path having the maximum propagation path power calculated by the first calculation circuitry as an installed station position of the RIS reflector;
• second calculation circuitry configured to calculate an incident angle of the propagation path to the installed station position determined by the installed station position determination circuitry and a reflection angle from the installed station position determined by the installed station position determination circuitry to the reception area;
• and
• output circuitry configured to output the installed station position determined by the installed station position determination circuitry and values indicating the incident angle and the reflection angle calculated by the second calculation circuitry.

An installed station determination method for determining an installed station of a RIS reflector when an electromagnetic wave transmitted from a transmission point is relayed by reflection to a reception point in a reception area shielded by a line of sight,

• the installed station determination method comprising:
• performing ray tracing from the transmission point with respect to an area including an installed station candidate area of the RIS reflector capable of propagating an electromagnetic wave from the transmission point to the reception area in the line of sight after one reflection;
• first calculating propagation path power and a reflection point position of each propagation path that propagates an electromagnetic wave from the transmission point to the reception area in the line of sight after one reflection in the installed station candidate area on a basis of a result of the ray tracing performed in performing ray tracing;
• determining a reflection point position of the propagation path having the maximum propagation path power calculated in first calculating as an installed station position of the RIS reflector;
• second calculating an incident angle of the propagation path to the installed station position determined in determining and a reflection angle from the installed station position determined in determining to the reception area;
• and
• outputting the installed station position determined in determining and values indicating the incident angle and the reflection angle calculated in second calculating.