Weisong Wen (Welson)

icon indicating a website link https://weisongwen.github.io/ icon indicating an email [email protected]

icon company Hong Kong Polytechnic University/University of California, Berkeley icon location Hung Hom, Kwolon, Hong Kong/CA, USA icon location Assistant Professor at The Hong Kong Polytechnic University. GNSS, NLOS/Multipath Mitigation, LiDAR SLAM, Navigation, Robotics.

Results 30 comments of Weisong Wen (Welson)

U-Blox ASIO input buffer read error: Operation canceled, collecting data from ublox EVK-M8T

hi @MrBanannaMan, thanks for your information, but this https://github.com/flynneva/ublox.git2 can not be opened. seems that this package is not existed.

U-Blox ASIO input buffer read error: Operation canceled, collecting data from ublox EVK-M8T

hi @MrBanannaMan thanks for your kind information, best welson

U-Blox ASIO input buffer read error: Operation canceled, collecting data from ublox EVK-M8T

@MrBanannaMan Hi, have you find that where we can obtain the pseudorange measurements from this package? moreover, this package seems cannot work with the Beidou satellites. best welson

Failed to run the order for saving map

hi @koide3 , the command rosservice call /hdl_graph_slam/save_map "resolution: 0.05 destination: '/full_path_directory/map.pcd'" did not work. For example, i want to save the map into my computer with the directory "/home/wenws/mapfile.pcd",...

Failed to run the order for saving map

hi @koide3 , It works now, there is something wrong on my ros previously. thanks, welson

Failed to run the order for saving map

hi @koide3 , It seems that only if i visualizae the generated real-time map, will the rosservice call /hdl_graph_slam/save_map "resolution: 0.05 destination: '/full_path_directory/map.pcd'" work. Otherwise, there will no cpd map...

drifted error of the ndt_omp

Hi @koide3, yes. the drift is mainly the translation error in z axis using the Direct7 search.

drifted error of the ndt_omp

Hi @koide3 . exactly, the probelm also see in pclomp::KDTree. The drift in accumulated at a larger speed compared with the very conventional NDT in PCL, for example the one...

Unable to obtain the same result as solution 2

@Pirkaklo Hi Yihan, can you please take a look at this? thanks

Unable to obtain the same result as solution 2

Hi @timuxi , thanks for the feedback! - **GNSS-RTK based on the RTKLIB**: For the RTKLIB setup, we use the forward mode. If you try this, you should be able...