I am more understand on the usbl operations after watching your video... Your presentaion covers a lot, and easy to understand for non-technical person like me... You're the man... Keep up posting more knowledgable videos!! I am one of your subscriber now!!
thank you so much, sir, for a very clear explanation ...... Sir, small request, please add papers links, it will be helpful for a researcher, to quickly go through them and cite them..........
Sonardyne and kongsberg websites has most of the materials pertaining to their own product but they also have basic acoustic function in the website. Kongsberg has better explanation though.
Hello sir, 2 questions from my end - 1) Are there any new USBL technology (like Ranger 2) in the market these days to give an accuracy of +/- 1m at 2000-m water depth? 2) if there are 4 clusters of 6 anchors (total 24 anchors) of an FPSO, how many LBL beacons would it require to be deployed ? will that be a one time activity or deployment and recovery of LBL array needs to be done 4 times ?
Hello @uddipankundu8265 - To start with, my knowledge about latest technology is a bit outdated, But 1. I dont believe there could be any USBL that can give you +/- 1m @2000 m depth. As long as USBL signal has to travel from surface to 2000 depth with various layers of water column, it is not possible to achieve +/-1m accuracy. 2. I do not understand your question mate. Do you need LBL for FPSO anchor deployment? How are the anchors designed? Are there going to be pre-installed anchors with surface buoy for FPSO to come later and latch on? Until I fully understand the situation, I can not answer you. Moreover what will be depth? What will be the seabed gradient? How far are the clusters from each other. It is never an easy answer. If I can have all the seabed profile and design anchor on my table, I might be able to advise. 3. I do not want to sound like a hypocrite but I do have a limit to how far I can answer a question in UA-cam comment. I do facilitate my TOP channel members to contact me directly for one to one consultation. I hope you do understand. 🙏
Hi thanks for watching. USBL can be calibrated in many different ways depending on what kind of vessel you are operating USBL from. In broad category you can say it can be either static calibration or dynamic calibration. In static you need 4 beacons lowered form static barge from specified Offsets on barge and do simultaneous logging and then use the Beacon data and compare with offsets data to find out your orientation error. Dynamic calibration is more comprehensive and you need a beacon about a meter from seabed and you log data by positioning your vessel at 4 cardinal points or you can run few lines around the beacon. Now all these depends on what survey software you use and the types of USBL you use. I know its not a complete answer to your question but it will take quite long time to explain it all.
Thanks for being here. I dont think you will get the answer here. USBL uses sound to communicate between transducer and beacon, where beacon was on Titan. But i have not operated a system where beacon can send text msg. There could other similar technology where you might be able to send text via pings. I am not aware.
Hi Jaom, thank you for the video. In the video you said that expanded high frequency ill travel less then 500m. This ill be true for a dolphin echolocating at 100kHz? Could you help me with this?
Hi Andrea, thank for visiting. I am sorry but I am not conversant with marine mammal sound frequency. In offshore sonar/seismic surveying any frequency below 15kHz is considered Low Frequency. In Echosounders a Low Frequency is typically 33kHz and High Frequency is 210kHz. Now there are Multibeam Echosounders which operate from 200 to 600 kHz frequency. On the low spectrum... Sub-bottom profilers operate anywhere from 1.5-2 kHz to 5kHz. Low frequency can penetrate deep into the soil where as higher frequency like 200kHz and above will bounce off the surface. Sound in water propagates differently depending on many conditions like salinity, density, temperature etc. Sound can dissipate and attenuate in the water. USBL and LBL depends on echo back from a transponder but Echosounders and marine mammals depends on bounce of echo. Well thats where my knowledge ends, kind of. I am not sure how much help that was.
hi JAOM，I learned a lot from your creation. I hope more people in China can see this clear video that explains USBL. Do you mind if I share this video with Chinese subtitles and dubbing to more Chinese. I will indicate the original author of this video: JAOM~Amazing Indian
Hello @Даниил I am not sure which algorithms you are asking about. But www.sonardyne.com/ and www.kongsbergsystems.com/ both have excellent materials that can be hugely beneficial. Hope this helps.
This video is gold!!
I am more understand on the usbl operations after watching your video... Your presentaion covers a lot, and easy to understand for non-technical person like me... You're the man... Keep up posting more knowledgable videos!! I am one of your subscriber now!!
Thank you very much. Hope my other videos will also be helpful.
Great lecture, More power to your elbow
Excellent work..! Each aspect is described very comprehensively. Well done
Well done, it's very clear and useful. Thanks
a very clear video giving us the better understanding of USBL.
would like to get in touch with you
Thanks and you are already in touch.
Very good and easy to follow explanation. Well done!
Thank you Vanessa
thank you so much, sir, for a very clear explanation ...... Sir, small request, please add papers links, it will be helpful for a researcher, to quickly go through them and cite them..........
Sure I will
Thanks for watching. If you liked this video please give me a Thumbs Up. Leave a comment below.
Great video and explanation
Thanks Zine. I hope you will like 👍 my other videos too.
Is there any reference material you can refer me to on Acoustic positioning system.
Thank you.....Your presentation is highly informative
Sonardyne and kongsberg websites has most of the materials pertaining to their own product but they also have basic acoustic function in the website. Kongsberg has better explanation though.
Very good indeed
Hello sir, 2 questions from my end -
1) Are there any new USBL technology (like Ranger 2) in the market these days to give an accuracy of +/- 1m at 2000-m water depth?
2) if there are 4 clusters of 6 anchors (total 24 anchors) of an FPSO, how many LBL beacons would it require to be deployed ? will that be a one time activity or deployment and recovery of LBL array needs to be done 4 times ?
Hello @uddipankundu8265 - To start with, my knowledge about latest technology is a bit outdated, But
1. I dont believe there could be any USBL that can give you +/- 1m @2000 m depth. As long as USBL signal has to travel from surface to 2000 depth with various layers of water column, it is not possible to achieve +/-1m accuracy.
2. I do not understand your question mate. Do you need LBL for FPSO anchor deployment? How are the anchors designed? Are there going to be pre-installed anchors with surface buoy for FPSO to come later and latch on? Until I fully understand the situation, I can not answer you. Moreover what will be depth? What will be the seabed gradient? How far are the clusters from each other. It is never an easy answer. If I can have all the seabed profile and design anchor on my table, I might be able to advise.
3. I do not want to sound like a hypocrite but I do have a limit to how far I can answer a question in UA-cam comment. I do facilitate my TOP channel members to contact me directly for one to one consultation. I hope you do understand. 🙏
Thanks
Thank you
Nice one. Please can you throw more light on USBL calibration
Hi thanks for watching. USBL can be calibrated in many different ways depending on what kind of vessel you are operating USBL from. In broad category you can say it can be either static calibration or dynamic calibration. In static you need 4 beacons lowered form static barge from specified Offsets on barge and do simultaneous logging and then use the Beacon data and compare with offsets data to find out your orientation error. Dynamic calibration is more comprehensive and you need a beacon about a meter from seabed and you log data by positioning your vessel at 4 cardinal points or you can run few lines around the beacon. Now all these depends on what survey software you use and the types of USBL you use. I know its not a complete answer to your question but it will take quite long time to explain it all.
Hi @Uche Nwangwu I have just released a USBL Cal video today you might be interested in.
good video.. i came here because i wanted to know how titan texted messages to surface
Thanks for being here. I dont think you will get the answer here. USBL uses sound to communicate between transducer and beacon, where beacon was on Titan. But i have not operated a system where beacon can send text msg. There could other similar technology where you might be able to send text via pings. I am not aware.
Hi Jaom, thank you for the video. In the video you said that expanded high frequency ill travel less then 500m. This ill be true for a dolphin echolocating at 100kHz? Could you help me with this?
Hi Andrea, thank for visiting. I am sorry but I am not conversant with marine mammal sound frequency. In offshore sonar/seismic surveying any frequency below 15kHz is considered Low Frequency. In Echosounders a Low Frequency is typically 33kHz and High Frequency is 210kHz. Now there are Multibeam Echosounders which operate from 200 to 600 kHz frequency. On the low spectrum... Sub-bottom profilers operate anywhere from 1.5-2 kHz to 5kHz. Low frequency can penetrate deep into the soil where as higher frequency like 200kHz and above will bounce off the surface. Sound in water propagates differently depending on many conditions like salinity, density, temperature etc. Sound can dissipate and attenuate in the water. USBL and LBL depends on echo back from a transponder but Echosounders and marine mammals depends on bounce of echo. Well thats where my knowledge ends, kind of. I am not sure how much help that was.
How do I start receiving usbl strings on my eiva navipac system
Depends on what format USBL is transmitting and what format your computer can accept. Try using HPR format.... generally it works.
hi JAOM，I learned a lot from your creation. I hope more people in China can see this clear video that explains USBL. Do you mind if I share this video with Chinese subtitles and dubbing to more Chinese. I will indicate the original author of this video: JAOM~Amazing Indian
Please go ahead, you have my permission. Please mention my handle @JAOM on Heading and description.
@@JAOM ok ，I will do as you say, thank you ！
The transceiver may be easily be hacked is interfer. One way beacon maybe easier
With ROV you can have a way return transmission. With divers this can not be possible.
Where can I find out about the algorithm for such positioning?
Hello @Даниил I am not sure which algorithms you are asking about. But www.sonardyne.com/ and www.kongsbergsystems.com/ both have excellent materials that can be hugely beneficial. Hope this helps.
@@JAOM hello, thx u :)
👍👍