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Posted by Dan Abramson on November 24, 2010, 3:00 am
Looking for someone who can assist in accessing GPS RINEX data
(pseudo-ranges etc.) from one or more popular smartphones (iPhone, any
Android device, etc.).

Is there anyone out there that knows how to do that ?

Posted by claudegps on November 24, 2010, 5:29 am
> Looking for someone who can assist in accessing GPS RINEX data
> (pseudo-ranges etc.) from one or more popular smartphones (iPhone, any
> Android device, etc.).
> Is there anyone out there that knows how to do that ?

You may find some hits here:
http://stackoverflow.com/questions/4250434/how-can-i-get-the-gps-raw-data-satellites-pseudo-range

Posted by Hans-Georg Michna on November 24, 2010, 11:32 am
On Wed, 24 Nov 2010 00:00:02 -0800 (PST), Dan Abramson wrote:

>Looking for someone who can assist in accessing GPS RINEX data
>(pseudo-ranges etc.) from one or more popular smartphones (iPhone, any
>Android device, etc.).
>Is there anyone out there that knows how to do that ?

I'm not sure, but it may not be possible, as the phones'
operating system does not provide any API for such data. Android
phones cannot even get the accurate (sub-second) time from their
GPS chips, because only the NMEA protocol is supported.

It's a shame, but that's how it seems to be.

Hans-Georg

Posted by Dan Abramson on November 25, 2010, 1:10 am
On Nov 24, 6:32=A0pm, Hans-Georg Michna <hans-
georgNoEmailPle...@michna.com> wrote:
> On Wed, 24 Nov 2010 00:00:02 -0800 (PST), Dan Abramson wrote:
> >Looking for someone who can assist in accessing GPS RINEX data
> >(pseudo-ranges etc.) from one or more popular smartphones (iPhone, any
> >Android device, etc.).
> >Is there anyone out there that knows how to do that ?
> I'm not sure, but it may not be possible, as the phones'
> operating system does not provide any API for such data. Android
> phones cannot even get the accurate (sub-second) time from their
> GPS chips, because only the NMEA protocol is supported.
> It's a shame, but that's how it seems to be.
> Hans-Georg

Hi Hans,

Thanks for this. Yes, I agree, the (standard) apis do not allow access
to such the RINEX data.

I am looking to access that data at a lower level (before the post-
processing and perhaps even before the GPS chip).

Know anyone who can help ?

Thx,

Dan

Posted by Hans-Georg Michna on November 26, 2010, 1:34 pm
On Wed, 24 Nov 2010 22:10:42 -0800 (PST), Dan Abramson wrote:

>On Nov 24, 6:32 pm, Hans-Georg Michna <hans-
>georgNoEmailPle...@michna.com> wrote:

>> On Wed, 24 Nov 2010 00:00:02 -0800 (PST), Dan Abramson wrote:
>> >Looking for someone who can assist in accessing GPS RINEX data
>> >(pseudo-ranges etc.) from one or more popular smartphones (iPhone, any
>> >Android device, etc.).
>> >Is there anyone out there that knows how to do that ?

>> I'm not sure, but it may not be possible, as the phones'
>> operating system does not provide any API for such data. Android
>> phones cannot even get the accurate (sub-second) time from their
>> GPS chips, because only the NMEA protocol is supported.
>> It's a shame, but that's how it seems to be.

>Thanks for this. Yes, I agree, the (standard) apis do not allow access
>to such the RINEX data.
>I am looking to access that data at a lower level (before the post-
>processing and perhaps even before the GPS chip).

In an Android phone that would only be possible with root access
rights. This means that you cannot write a program and tell
anybody to load it on his phone, for example, via the market.

Even if you announced the program as "root rights required",
you'd still have to compile at least a part of it, something
like a driver, for the many different hardware platforms.

It may be easier for iPhone or Windows Phone 7, because of their
platform limitations, but those operating systems are not
open-source, which would, in turn, make it more difficult on
that side.

Hans-Georg