And I have another question. According to what
,you decide the bandwide of the code loop and carrier loop? Did you do
some simulation? Would you send me something about the
simulation?
Thanks.
Looking forward for your reply.
> The threshold for power is set at the sqrt of 2 times
the rms value. To approximate this with integer values it was multiplied
by 14 first and then divided by 10.
>
> 1200 was chosen as an
approximate value of 45 deg based on the scaling used in the 4 quadrant arc
tangent function.
>
> I hope this helps,
>
>
Cliff
>
> -----Original Message-----
>>From: ?? <
jiangyigirl@...>
>>Sent: May 8, 2008 7:41
PM
>>To:
opensource_gps@...>>Subject:
[OpenSource_GPS] About pull_in state Parameter
>>
>>Dear
Sir:
>>
>> I'm a graduate student. I'm very interested in
OSGPS. I wanna know the detail about OSGPS.
>>
>>In the end of
pull_in state, the software use if (c->avg > 14 * rms /
10 && c->th_rms < 12000 && c->ms_set) as
the condition for track state.
>>
>>My problem
:
>>1 avg > 14 * rms / 10 ,what's the
meaning of 14 and 10
>>2 c->th_rms <
12000 why should we choose 12000 as the the
threshold
>>
>>Looking forward for your reply!
>>Best
Regard!
>>
>>
>>----- Original Message -----
>>From: <
opensource_gps-request@...>
>>To: <
opensource_gps@...>
>>Sent: Friday, May
09, 2008 3:00 AM
>>Subject: opensource_gps Digest, Vol 49, Issue
2
>>
>>
>>> Send opensource_gps mailing list
submissions to
>>>
opensource_gps@...>>>
>>>
To subscribe or unsubscribe via the World Wide Web, visit
>>>
http://lists.psas.pdx.edu/cgi-bin/mailman/listinfo/opensource_gps>>>
or, via email, send a message with subject or body 'help' to
>>>
opensource_gps-request@...>>>
>>> You can reach the person managing the list at
>>>
opensource_gps-owner@...>>>
>>> When replying, please edit your Subject line so it is more
specific
>>> than "Re: Contents of opensource_gps
digest..."
>>>
>>>
>>> Today's
Topics:
>>>
>>> 1. ???? (
shuaihan@...)
>>> 2. Re: Why add 0.5 in
pull_in and track parameter (??)
>>>
>>>
>>>
----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Wed, 7 May 2008 12:00:42
-0700
>>> From: <
shuaihan@...>
>>> Subject: [OpenSource_GPS]
????
>>> To:
opensource_gps@...>>> Message-ID: <
BAY0-MC10-F1057EBD7F68494E7B6E0E3A2D10@...>
>>>
Content-Type: text/plain; charset="us-ascii"
>>>
>>> An
HTML attachment was scrubbed...
>>> URL:
http://lists.psas.pdx.edu/pipermail/opensource_gps/attachments/20080507/78933d21/attachment.html
>>>
>>> ------------------------------
>>>
>>> Message: 2
>>> Date: Thu, 8 May 2008 09:55:09
+0800
>>> From: "??" <
jiangyigirl@...>
>>> Subject: Re:
[OpenSource_GPS] Why add 0.5 in pull_in and track
>>>
parameter
>>> To: <
opensource_gps@...>
>>> Message-ID:
<
000b01c8b0ae$8e56a420$7001a8c0@dlmu7657b7f615>
>>>
Content-Type: text/plain; charset="iso-8859-1"
>>>
>>>
Dear Sir:
>>>
>>> I found Open Source software is
:
>>>
>>> pull_carr_C1=(int)
(1.69852*Bnpullcarr/Carrier_DCO_Delta/(4.0+5.333*Bnpullcarr/1000.0+(1.8856*Bnpullcarr/1000.0)*
>>>
(1.8856*Bnpullcarr/1000.0))+0.5);
>>>
>>>
pull_carr_C2=(int)
(0.6369183/Carrier_DCO_Delta*(1.8856*Bnpullcarr/1000.0)*(1.8856*Bnpullcarr/1000.0)*1000.0/
>>>
(4.0+5.333*Bnpullcarr/1000.0+(1.8856*Bnpullcarr/1000.0)*(1.8856*Bnpullcarr/1000.0))+0.5);
>>>
>>> pull_code_C1=(int)
(10.598/Code_DCO_Delta*Bnpullcode/(4.0+5.333*Bnpullcode/1000.0+(1.8856*Bnpullcode/1000.0)*
>>>
(1.8856*Bnpullcode/1000.0))+0.5);
>>>
>>>
pull_code_C2=(int)
(4.028/Code_DCO_Delta*(1.8856*Bnpullcode/1000.0)*(1.8856*Bnpullcode/1000.0)*1000.0/
>>>
(4.0+5.333*Bnpullcode/1000.0+(1.8856*Bnpullcode/1000.0)*(1.8856*Bnpullcode/1000.0))+0.5);
>>>
>>> I know C1 C2 is
>>> pull_carr_C1 =
1/(Ko*Kn)*8*zeta*On*Ts/(4+4*zeta*On*Ts+(On*Ts)^2);
>>> pull_carr_C2 =
1/(Ko*Kn)*4*(On*Ts)^2/(4+4*zeta*On*Ts+(On*Ts)^2);
>>>
>>> By compared, I wonder why add 0.5 to C1 and C2
>>>
>>>
>>> ----- Original Message -----
>>>
From: <
opensource_gps-request@...>
>>> To:
<
opensource_gps@...>
>>> Sent:
Thursday, May 08, 2008 3:00 AM
>>> Subject: opensource_gps Digest,
Vol 49, Issue 1
>>>
>>>
>>>> Send
opensource_gps mailing list submissions to
>>>>
opensource_gps@...>>>>
>>>> To subscribe or unsubscribe via the World Wide Web,
visit
>>>>
http://lists.psas.pdx.edu/cgi-bin/mailman/listinfo/opensource_gps>>>>
or, via email, send a message with subject or body 'help' to
>>>>
opensource_gps-request@...>>>>
>>>> You can reach the person managing the list
at
>>>>
opensource_gps-owner@...>>>>
>>>> When replying, please edit your Subject line so it is more
specific
>>>> than "Re: Contents of opensource_gps
digest..."
>>>>
>>>>
>>>> Today's
Topics:
>>>>
>>>> 1. osgps run under
windows xp (yuguangzhan)
>>>>
>>>>
>>>>
----------------------------------------------------------------------
>>>>
>>>> Message: 1
>>>> Date: Wed, 7 May 2008
12:05:10 +0000 (UTC)
>>>> From: yuguangzhan <
yuguang.zhan@...>
>>>> Subject:
[OpenSource_GPS] osgps run under windows xp
>>>> To:
opensource_gps@...>>>> Message-ID:
<
loom.20080507T120323-538@...>
>>>>
Content-Type: text/plain; charset=us-ascii
>>>>
>>>> Hi, Cliff:
>>>>
>>>>
>>>> I purchased a GPS1005 PCI bus board on year 2007 from
GPS Creations. Now we
>>>> want to run it under windows xp.So we
wonder if the opensource_gps code can
>>>> run in windows
xp and if there is a windows WDM driver available.
>>>>
>>>> Could you please advise how could I proceed in order to
find
>>>> such driver? Do you know anyone else who could have it
available?
>>>>
>>>>
Sincerely,
>>>>
>>>> yuguang.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
------------------------------
>>>>
>>>>
_______________________________________________
>>>>
opensource_gps mailing list
>>>>
opensource_gps@...>>>>
http://lists.psas.pdx.edu/cgi-bin/mailman/listinfo/opensource_gps>>>>
>>>>
>>>> End of opensource_gps Digest, Vol 49,
Issue 1
>>>>
*********************************************
>>>
>>>
------------------------------
>>>
>>>
_______________________________________________
>>> opensource_gps
mailing list
>>>
opensource_gps@...>>>
http://lists.psas.pdx.edu/cgi-bin/mailman/listinfo/opensource_gps>>>
>>>
>>> End of opensource_gps Digest, Vol 49, Issue
2
>>>
*********************************************
>>_______________________________________________
>>opensource_gps
mailing
list
>>
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>
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