05-05-2023 дата публикации
Номер: CN116068488A
Автор:
HU LIANG,
ZHANG PENG,
LIU YAHUI,
WEN XIANPEI,
HU YU,
HUAI LI,
WANG FEI,
HUANG YOUSHENG,
ZHOU DAIYONG,
DAI JIANBO,
WEI HUAFENG,
ZHANG JIANFENG,
ZHENG FANGFEI,
HE QINGSONG,
ZHAO GUANGXU,
GUO JIANGTAO,
LIN YIN,
REN GAOJIAN,
ZHANG JINHAO,
LIU HUIJIE
Принадлежит:
The invention relates to a method for improving accuracy of UWB positioning data, and belongs to the technical field of mine accurate positioning. The method specifically comprises the following steps: setting a noise threshold and an empirical medium constant of a positioning receiving end, and simultaneously receiving a positioning signal by a positioning system; judging whether a multipath effect exists in the received signal or not; if the multipath effect exists in the received signal, calculating the probability PT that the direct path is not extracted, and judging whether the direct path is not extracted due to the fact that the noise threshold is set to be too high or not through the PT; the positioning algorithm carries out positioning calculation on the successfully extracted direct path to obtain positioning coordinates (x0, y0, z0); the positioning coordinates (x0, y0, z0) are sent to a Kalman filtering algorithm for filtering, filtering results (xn + 1, yn + 1, zn + 1) are ...
Подробнее
