Positioning method based on signal time delay characteristic space-time distribution
A technology of time-space distribution and positioning method, applied in positioning, measuring devices, instruments, etc., can solve the problems of inconsistent space-time reference, poor signal/information fusion, etc., achieve low operation complexity and cost, small path transmission loss, The simple effect of positioning requirements
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[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and examples.
[0042] A time-space distribution positioning method based on signal delay characteristics, the system to which this method is applicable includes a ground reference network composed of multiple monitoring reference stations, such as figure 1 As shown, the specific process is:
[0043] 1). Modeling variable preprocessing and classification mapping storage
[0044] The intermediate frequency data of the signals received by the monitoring reference stations of the ground reference network are collected, and the intermediate frequency signals are compared and processed by the matched filter to obtain the relative time delay estimation of the signals arriving at each reference station. The logarithm of the relative delay ratio of the reference station is determined by factors such as the size of the hotspot service area, the number of terminals detected at t...
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