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Search: Posts Made By: Hyperveloce
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Forum: Rumours & News
24th Jul 2014, 16:20
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

Wind-Tunnel, I am a bit bothered too with the...

Wind-Tunnel,
I am a bit bothered too with the data. Here are my last (Montecarlo simulation) results:
The last south legs of all the simulated trajectories are at constant speed (and altitude)...
Forum: Rumours & News
17th Jul 2014, 23:42
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

BTO values in the communication log

From the communication log, I get the following BTO values
TimeBTO=[0 12 13 25 37 118 191 251 311 371 461]; ...
Forum: Rumours & News
13th Jul 2014, 18:22
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

No, I am saying that these graphics were released...

No, I am saying that these graphics were released as part of the MH370 preliminary report by the office of the chief inspector of air accident, Malaysian MoT:
MH370: Transport Ministry releases...
Forum: Rumours & News
13th Jul 2014, 17:16
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

Are you suggesting that the official...

Are you suggesting that the official investigation team has lost sight of reality when it produces such trajectories ?
...
Forum: Rumours & News
13th Jul 2014, 15:59
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

I wonder if such a bunch of trajectories would...

I wonder if such a bunch of trajectories would draw the attention of the Indonesian airspace surveillance chain (the location of the unidentified A/C matters versus a RoI, but also its radial speed...
Forum: Rumours & News
10th Jul 2014, 18:38
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

:ok: very nice map mm43, as usual. what is the...

:ok: very nice map mm43, as usual. what is the average ground speed of this great circle trajectory ?

I tend to agree with OleOle when he suggests that the 18:40 BFO value of the C-channel Rx...
Forum: Rumours & News
30th Jun 2014, 17:57
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

I have tested this for great circles between...

I have tested this for great circles between waypoints (LNAV mode), between BEBIM (and a shifted version to the east) toward 3 destinations: the south pole, the Wilkins airport and NOBEY
...to...
Forum: Rumours & News
29th Jun 2014, 17:24
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

There are rhumb line trajectories intersecting...

There are rhumb line trajectories intersecting all the ping rings, with variable speeds, they depend where your starting point (at 18:29) is:

best bearing (so as to minimize speed variations) as a...
Forum: Rumours & News
29th Jun 2014, 17:16
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

I do not use an a priori AES fixed frequency bias...

I do not use an a priori AES fixed frequency bias (nor 150 Hz, nor a uniform distribution between 150-5 and 150+5 Hz like in the report), in my simulation the AES frequency bias is estimated (along...
Forum: Rumours & News
28th Jun 2014, 22:31
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

Here are the results of a MonteCarlo simulation,...

Here are the results of a MonteCarlo simulation, for constant speed/altitude final leg (from 18:29) like for the analysis B of the report ""Definition of the underwater search areas" available at the...
Forum: Rumours & News
24th Jun 2014, 16:51
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

BFO model

Something I don't understand about the D3 compensation: what is the purpose to send a pilot frequency from Italia or the Netherlands, so that the 3F1 satellite measures/observes the doppler shift...
Forum: Rumours & News
22nd Jun 2014, 12:46
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

I completely understand that you are seeking for...

I completely understand that you are seeking for the simplest model integrating what we factually know to describe the observed data.
I have still to rerun my MC simulation (BTW Gysbreght, the most...
Forum: Rumours & News
18th Jun 2014, 16:53
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

Wow, nice paper ! :D Can't help thinking your...

Wow, nice paper ! :D Can't help thinking your wife is a bit right :8
Interesting piece of information about the D3 meaning / compensation.
You did not try to model accurately the 1st part of the...
Forum: Rumours & News
14th Jun 2014, 14:36
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

the varied trajectories are randomized versions...

the varied trajectories are randomized versions of a mother/reference trajectory.
A trajectory is a timed sequence of speed, bearing, altitude changes (this timed sequence is the genom/DNA of a...
Forum: Rumours & News
14th Jun 2014, 12:23
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

I don't understand why the available data do not...

I don't understand why the available data do not allow a quantitative analysis of the BFO.

Even if we don't know the AES specific frequency bias and how the GES compensates for the D3 doppler...
Forum: Rumours & News
6th May 2014, 18:49
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

mm43, are you sure that this P-channel continuous...

mm43, are you sure that this P-channel continuous monitoring of the doppler shift between the A/C and the 3F1 satellite was implemented by the MH370 AES ?
I ask because the Inmarsat annex 1 clearly...
Forum: Rumours & News
26th Apr 2014, 19:30
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

With a scaling factor of 0.25 (instead of...

With a scaling factor of 0.25 (instead of 0.15-0.2), the 1st plot of the 2nd page of my doc would basically be translated higher (the 120 min peak would reach approx 290 Hz instead of 250 Hz): it...
Forum: Rumours & News
26th Apr 2014, 18:30
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

To me, both BFO inflexions at 1:07 and 2:25 are...

To me, both BFO inflexions at 1:07 and 2:25 are indicative of a turn (I don't see another phenomenon to explain such a rapid variation of the BFO), the 1st is when the plane diverted from the...
Forum: Rumours & News
26th Apr 2014, 18:10
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

As far as I know, they are constant speed...

As far as I know, they are constant speed trajectories (Inmarsat's). You may also want to fit constant bearing trajectories or variable speed/bearing trajectories... The altitude variations (unless...
Forum: Rumours & News
26th Apr 2014, 17:00
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

Possible signature of a south trajectory in the Inmarsat's BFO ?

Hi there,
I would like to submit an idea (for falsification purpose) about a possible clue/signature in the Inmarsat's BFO to decide whether the real underlying trajectory is toward the south or...
Forum: Rumours & News
30th Mar 2014, 14:24
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

The AAIB presentation (annex 1) gives some idea...

The AAIB presentation (annex 1) gives some idea about what is compensated / measured or not I think ? ...
Forum: Rumours & News
30th Mar 2014, 14:01
Replies: 11,831
Views: 24,375,941
Posted By Hyperveloce

Burst frequency offset analysis (doppler analysis)

Hi there.
The more I am trying to understand the D2 doppler (plane->satellite doppler, not compensed and measured by the ground stations) profile presented by the AAIB, the more I get confused....
Showing results 1 to 22 of 22


 
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