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ADIS16300/16305

I want to develop car navigation system using adis16300 or adis16305.

I think it's possible. right?

i wanna know difference between adis16305 and adis16300.

which one is better?

i know adis16305 is better than adis16300, but adis16305 is expensive.

if using adis16300/16305, after 10 minutes,  how much Inertial Navigation error?

  • Thank you for your post!  The primary difference between the ADIS16305 and the ADIS16300 is that the ADIS16305 benefits from a calibration over the industrial temperature range of -40 to +85C.  "Car Navigation" seems to be a hot area of research for using lower-cost sensing technologies (MEMS, even the ADIS16xxxx products, tend to be much less expensive than RLG or FOG solutions), but in most cases, the performance of these lower-cost solutions are not good enough to support the entire navigation solution, on their own.  Therefore, the majority of the research that I am aware of is focused on developing optimal blends of multiple sensor/observer technologies (including MEMS) to support this function.  At this time, it appears like MEMS technology presents enough for inclusion, while the core technology advances to improve key performance metrics. Since there are a lot of unique approaches being developed by our customer base, we tend to focus our specifications on basic sensor behaviors, while helping with application-specific questions through these types of conversations.  Before dig too deeply into this, could you provide a bit more detail on your objectives?

    • Given all of the products in our IMU portfolio, what was your criteria for selecting this part?  Sometimes, we have seen that when customers start with the best performance, even when the cost profile will prohibit wide-scale adoption, they are able to get systems up and running quicker.  A working system typically creates a strategic advantage, as it provides a platform for evaluating the performance trade-offs that lower-cost solutions provide.
    • Does "car navigation" mean that you trying to track its location in GPS-denied environments or is your intent to develop a a full GNC (guidance, navigation and control) system for a car?  Or, are there other functional objectives?
    • Do you plan to have access to other inertial observers?  Wheel speed? Compassing? Radar? Visual-assist?
  • I tried to do the same - i wanted to build navigation system that can track the car when GPS receiving is jammed. Actually, it should be the anti-theft system for premium class cars.

    I found that ADIS16300 had a very heavy drift of the gyro's zero after turning it on for at least 5 minutes. In winter this time increases up to 15 minutes. Actually I was unable to develop the correction procedure for transitional moments. When the temperature moves slowly, one can easily predict zero drift of ADIS16300, but immediately after turning on the unit the internal temperature rises very quickly.

    After the stable temperature is reached, the device is precise enough for 10 to 15 minutes of navigation, if the system uses the city map and pulls the calculated track to the roads. If you can't use information from odometer and try to perform double integral to get linear displacement, the typical error value was 50 metres after 5 minutes and 200 metres after 10 minutes. If you has the displacement info from the car wheels, you can track the car between city blocks for at least 30 minutes.

    After that the device must upload the track to the host using GPRS or faster mobile data link. To continue tracking, the unit has to acquire the new coords using common GPS receiver after 30 min or its' calculated track seems useless.

  • We are assuming that this matter is closed for now, but we are open to any future discussion on this topic, as your research is likely to generate new questions along the way.  By the way, the ADIS16460 may be worth consideration now as well.

    www.analog.com/ADIS16460