Special Topics - GPS (18 of 100) The Navigation Message Subframe Data Structure

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  • Опубликовано: 26 ноя 2024

Комментарии • 68

  • @santiagomorales6347
    @santiagomorales6347 5 лет назад +3

    Amazing!! I saw all the 18 vids in a row and a lot of things about GPS are now clear. This last video was posted 3 years ago, I really hope you continue with this awesome GPS series. Thank you!

  • @physgeek5000
    @physgeek5000 7 лет назад +3

    This is, by far, the best lecture I have seen on the working of GPS. I can't wait for more videos!

  • @samykamkar
    @samykamkar 6 лет назад +6

    This is an awesome series! I can't wait for more of your videos.

  • @Nerd3927
    @Nerd3927 6 лет назад +3

    My God, i have been looking for these detail for ever! Thanks for posting!

    • @Nerd3927
      @Nerd3927 4 года назад

      I moved from IT to Geo support. Thanks so much for this. It has changed my life!

  • @chad134
    @chad134 4 года назад +2

    This has been a great series. It has a lot of technical depth that is explained so it's easy to understand. I hope you get to finish the series one day.

    • @MichelvanBiezen
      @MichelvanBiezen  4 года назад +3

      When my work load lessens, or when I retire, my plan is to complete all the playlists. (I am currently working on GPS)

  • @ve2zzz
    @ve2zzz 4 года назад +1

    Extremely informative !
    Cab't wait for the continuation of this series.

  • @erikrivas3529
    @erikrivas3529 4 года назад +1

    We really need more of these vids. Great great job!

  • @WingingItOnWheels
    @WingingItOnWheels 8 лет назад +5

    Fantastic series so far. Can't wait for the next one

  • @vinaybhaskarchandratre7762
    @vinaybhaskarchandratre7762 5 лет назад +2

    crisp, to the point, excellent the whole series of GPS series, good work. hope the l5 and encrypted codes concept was also discussed .. hope the series will continue

  • @artyomzingfeld360
    @artyomzingfeld360 4 года назад +3

    You have a huge knowledge and simplicity in explanation of subject, could you continue with those Special Topics - GPS videos, you just cannot leave it like this, followers are really interested!
    Very motivational content and amazing videos you have! Thank you very much btw.

    • @MichelvanBiezen
      @MichelvanBiezen  4 года назад +2

      Yes, my plan is to continue these videos in the near future.

    • @artyomzingfeld360
      @artyomzingfeld360 4 года назад +1

      @@MichelvanBiezen I study by your videos much better than at school does, and because of your videos I do realize some complicated physical processes, that my school mates don't. So thank you very much for great content, and we all stay tuned! :)

  • @enshala6401
    @enshala6401 4 года назад +1

    Michel, thank you so much for these clear explanations on the details of GPS. I understand you are very busy with other videos - the wealth of knowledge is amazing! But please consider something: it is extremely difficult to find cogent video lectures on GPS, whereas there are other RUclips channels that are providing content on undergrad courses in math and physics. I think people would even pay (via RUclips join function) for you to continue this series. I know I would. You have something uniquely special to offer students and professionals in the field.

    • @MichelvanBiezen
      @MichelvanBiezen  4 года назад +1

      Thank you for your comment. Yes the plan is to get back to these videos. But we both are sooooo busy right now with our multiple jobs, we may have to retire before we find the time

  • @ahmedbabayo3660
    @ahmedbabayo3660 4 года назад +1

    Great job for humanity, please continue Sir

    • @MichelvanBiezen
      @MichelvanBiezen  4 года назад +1

      That is the plan when I have the time. (I am very busy with work at this time).

  • @sundossalmahadeen4238
    @sundossalmahadeen4238 7 лет назад +3

    great series, can't wait for the rest

  • @kudiltralala2895
    @kudiltralala2895 2 года назад +1

    I do really hope this series will continue in the near future. This has been really helpful for my master thesis preparation alot. Please sir, do it. :(

    • @MichelvanBiezen
      @MichelvanBiezen  2 года назад +1

      That is part of the plan. I am very short on time at the moment.

  • @magorzata4896
    @magorzata4896 6 лет назад +3

    Thank you so much for the series :) Waiting for continuation

  • @jasonyoung8430
    @jasonyoung8430 6 лет назад +2

    definitely still interest in this video series if you find time with your work schedule. Do you have any references, books, or journal articles, where I could read more about the topic. Especially interested in the security aspects of the system.

    • @MichelvanBiezen
      @MichelvanBiezen  6 лет назад +2

      There is government site that explains how GPS works. It is very good.

  • @RBfarming
    @RBfarming 8 лет назад +7

    Hi there! Do you have any plans to continue with this series? I found all of these 18 so far extremely clear and informative and would love if you could continue into the realms of phase pseudo-range positioning!

    • @MichelvanBiezen
      @MichelvanBiezen  8 лет назад +19

      I have gotten very busy at work, and haven't had the time to continue this series, (it takes a lot of prep time). When the opportunity arises, I will continue this series.

    • @dharmanaharishnaidu
      @dharmanaharishnaidu 7 лет назад +3

      sir i am waiting for your videos about GPS from many days...we kindly request you to please continue the series..

    • @Nerd3927
      @Nerd3927 4 года назад +2

      @@MichelvanBiezen I can imagine. What would be a good source for the information? Any books you can recommend?

  • @Goodgu3963
    @Goodgu3963 3 года назад +1

    Hey I'm a student currently working on a project at university. Are there any videos on your channel or others you recommend for learning about the mathematics behind triangulation? I'm working on a project that involves space navigation and I'm having trouble finding good reference material. Can't wait for the continuation of this series! Thanks!

  • @kindjupiter
    @kindjupiter 6 лет назад +1

    hello Mr. Van Biezen. could you explain maybe how is it possible to count the number of satellite visible over certain coordiante.I have searched in Internet and i have found it is with DOP in relation is. and DOP must be read from almanac. Am I correct, or is it correct way? Thank you very much

  • @ve2zzz
    @ve2zzz Год назад +1

    In subframe 4, UTC information sends the GPS-to-UTC second offset.
    Once in a while (last occured in 2017), UTC time is "lagged" by a second 60 (61th second in a minute), called "Leap Second", at 23:59:60 UTC either on june 30 or on december 31 to keep UTC time synchronises with the Planet Earth's natural rotation.
    The GPS system can not handle leap seconds at all, since timekeeping is ultra-critical in the Navstar system.
    To accommodate users who universally use UTC time, the UTC to GPS time is sent every 12.5 minutes in subframe 4.
    As i wrote this info, UTC time is lagged 18.000000 seconds behind GPS time and no future leap second is announced.

  • @eiman936
    @eiman936 6 лет назад +1

    Thank you very much for this great work.

  • @surveyingworld5219
    @surveyingworld5219 7 лет назад +3

    great work we want more

  • @ahmedal-ebrashy3691
    @ahmedal-ebrashy3691 3 года назад +1

    Are you gonna complete this list it seems highly beneficial and intersting?

    • @MichelvanBiezen
      @MichelvanBiezen  3 года назад +1

      One day when I have more time. Currently I am very busy with work. (I am actually working on GPS right now)

  • @alihaji1738
    @alihaji1738 2 года назад +2

    Amazing tutorial . Thank you for the videos. it seems (based on the date of the videos uploading ) you have probably no time or plan to complete this great tutorial. Can you introduce any reference books or videos, etc that I (and other enthusiasts) can continue the GPS learning? Thanks in advances.

    • @MichelvanBiezen
      @MichelvanBiezen  2 года назад +3

      As it turns out, we are planning to start this playlist up again. We have about 500 playlists on this channel with about 100 that are not complete yet. This is one of them. We are now systematically going back to complete these playlists while also putting up new material. I have been doing the preparation work so we can shoot some additional GPS videos.

    • @alihaji1738
      @alihaji1738 2 года назад +1

      @@MichelvanBiezen It's great. Waiting for the updates ...

  • @garrettnackerman6268
    @garrettnackerman6268 4 года назад +1

    This series and your explanations have been incredibly valuable. What a cliff hanger! I understand you're busy and may have to wait until you retire - I just hope that you retire soon!

  • @abzu
    @abzu 3 года назад +2

    Hello, this series is really interesting, will you be uploading more videos on GPS?

    • @MichelvanBiezen
      @MichelvanBiezen  3 года назад +6

      We will try to get back to that when time permits. Right now our schedule is very busy.

  • @raminrad4940
    @raminrad4940 8 лет назад +1

    Excellent Lecturer!Would you please upload the rest. Thanks and keep up the good work

  • @ColinBroderickMaths
    @ColinBroderickMaths 3 года назад +1

    Why are both this series and the Kalman filter series unfinished? Is this a pattern I should expect in your other materials?

    • @MichelvanBiezen
      @MichelvanBiezen  3 года назад +1

      For someone working 90 hours per week, we are doing our best to complete as many of the playlists as possible. It is a slow process that will take many years.

  • @abeywardanabandara2239
    @abeywardanabandara2239 6 лет назад

    Great teaching technics used for GPS

  • @bhavanathumati6
    @bhavanathumati6 6 лет назад +1

    Please sir continue this topic.

  • @guillelavia934
    @guillelavia934 4 года назад +1

    Héroe con moño!!!!

  • @sujithshetty4493
    @sujithshetty4493 6 лет назад +1

    Waiting for next videos on GPS

  • @sambitprakashmohanty4103
    @sambitprakashmohanty4103 2 года назад +1

    Please sir we are waiting the continue the series of GPS constellation.

    • @MichelvanBiezen
      @MichelvanBiezen  2 года назад +1

      We are working on it. I have been a bit busy at work. When things ease up we'll continue.

  • @JohnDemetriou
    @JohnDemetriou 6 лет назад +2

    You are great, but one problem, you started a couple of special topics, (kalman filtering and GPS) but never finished them

    • @MichelvanBiezen
      @MichelvanBiezen  6 лет назад +2

      Thank you. Yes, our time is very limited. We work several jobs and do these videos in our "spare" time. We do our best to try and cover as many topics as we can.

  • @mostakinrabbi5938
    @mostakinrabbi5938 7 лет назад

    its been a year I have wait for this series ( GPS) to complete... when u gonnna upload then GSP tutorial?

    • @MichelvanBiezen
      @MichelvanBiezen  7 лет назад +2

      It is a matter of time. There are many topics that we are trying to cover and between working 3 jobs and making videos there just isn't enough time in a day. One day, we hope to continue with that and many other topics we still have to complete.

    • @mostakinrabbi5938
      @mostakinrabbi5938 7 лет назад +1

      Michel van Biezen sir
      please start this topic soon as it is demanded the most I guess. y

    • @fissoleouf23
      @fissoleouf23 4 года назад

      @@MichelvanBiezen Hi Sir ! I really hope you'll continue these series it really helps !

  • @chriscuthbert249
    @chriscuthbert249 6 лет назад +2

    Kind of a drag that this series died suddenly like this. Understandable that you don't have the time. However, you are still making videos on other topics and posting them. Not sure what gives those topics precedence over this one. We've all learned a lot from the videos uploaded on this topic. Just wish you would have finished what you started.

    • @MichelvanBiezen
      @MichelvanBiezen  6 лет назад +8

      With our limited time, we have to pick and choose which playlists to work on. One big factor is the requests from the audience and some topics and subject receive many more requests than others. The plan is to complete all of the topics as time permits. With our multiple day jobs in addition to making videos, we are stretched as thin as humanly possible.

    • @chriscuthbert249
      @chriscuthbert249 6 лет назад +4

      Fair enough. Thank you for what you have produced already. I work in aerospace and your GPS videos gave me a quick jump start and were immensely helpful. I've brought coworkers up to speed on these basic GPS concepts based on your lectures. Your explanation of the generation of C/A code was extremely helpful. Hopefully someday you can go into P-code (and P(Y), M-code, L1C, L2C, L5,......).

    • @RobertResearchRadios
      @RobertResearchRadios 4 года назад

      @@MichelvanBiezen Lots of proprietary education documents don't even do GPS this much justice, but it really is a shame that you have prioritized other video content over this series. What you are doing here is unique and helpful, more so than other resources I've used. You should really continue with this series if possible.

  • @SuperSMT
    @SuperSMT 5 лет назад

    Did you _really_ ever plan on *100* episodes?

    • @MichelvanBiezen
      @MichelvanBiezen  5 лет назад +3

      At the time yes. I probably will need to retire before I have time to continue.