| 摘要 |
PURPOSE: To exactly perform position measurement for a moving object by receiving coded high speed information with a moving object other than the first moving object and reconstructing the initial high speed information using correlation with a time division code and demodulation. CONSTITUTION: A transmitter 10 receives high speed information which each of moving objects 1 to 3 should sends and after modulating and coding with time division code, it generates coded high speed information F1. Receivers 23 and 33, after receiving this information F1, reconstruct the initial high speed information using the correlation of the demodulation and time division code. A responding device 24, after receiving low speed information to transmit, generates coded low speed information F2. After receiving this information F2, reconstructing the initial low speed information and comparing the phase delay of the time division code corresponding to the low speed information with the time division code for coding the high speed information, position measuring receivers 15 and 35 produce distance information. The receivers 15 and 35 also measure the position of various moving objects using triangulation based on the distance information. |
