Program, information processing device, and information processing method

An information processing device comprising:

• a ranging signal reception unit that receives a ranging signal that is output from a ranging signal output block and is constituted by a spreading code signal obtained by conducting spread spectrum modulation on a spreading code;
• and
• a position calculation unit that calculates a position of the ranging signal reception unit or the ranging signal output block on a basis of a distance to the ranging signal output block identified from a propagation time that is a time until the ranging signal from the ranging signal output block is propagated to and received by the ranging signal reception unit, wherein
• the position calculation unit calculates the position of the ranging signal reception unit or the ranging signal output block on a basis of a distance difference from the ranging signal output block per unit time when the position calculation unit moves at a predetermined velocity.

An information processing method including:

• a ranging signal reception unit that receives a ranging signal that is output from a ranging signal output block and is constituted by a spreading code signal obtained by conducting spread spectrum modulation on a spreading code;
• and
• a position calculation unit that calculates a position of the ranging signal reception unit or the ranging signal output block on a basis of a distance to the ranging signal output block identified from a propagation time that is a time until the ranging signal from the ranging signal output block is propagated to and received by the ranging signal reception unit,
• the information processing method comprising
• a step of calculating, by the position calculation unit, the position of the ranging signal reception unit or the ranging signal output block on a basis of a distance difference from the ranging signal output block per unit time when the position calculation unit moves at a predetermined velocity.