Finding location of CPA(Closest point of approach) of two ships using MATLAB code

Encerrado

Hello.

My sample data is constructed the structure type of Matlab.

My data description is as follows;

The contents of sample data are ship’s data(date, time, longitude, latitude, speed, course) according to each ship id(MMSI).

The time interval of ship’s location is 2~35 second(less than 180 second).

So, that’s why ship’s data was interpolated per second.

The interpolated data was changed to bigger size than the original data.

I shared you my interpolated data, matlab function and powerpoint on google drive.

[url removed, login to view]

The CPA means as follows;

An estimated point in which the distance between two ships. abbreviated CPA(Closest Point of Approach).

The estimate is used to evaluate the risk of a collision of two ships.

I shared one video recording file for explanation of CPA concept on google drive.

[url removed, login to view]

You can see that as time goes by, CPA and TCPA changed on video file.

I have a matlab algorithm(function) about CPA. The algorithm was made from a journal.

I attatched an algorithm function about CPA.

My data is 250 ships.

Example

May first, 2014

If No.1 ship and No.2 ship in same date and time, I want to calculate DCPA, TCPA and range using my algorithm function.

And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships.

(criterion lower than DCPA [url removed, login to view] nautical mile and lower than TCPA 3 minute).

...

No.1 and [url removed, login to view] should be calculated DCPA, TCPA and range.

And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships.

No.2 and No.3 should be calculated DCPA, TCPA and range.

And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships.

...

No.2 and [url removed, login to view] should be calculated DCPA, TCPA and range.

And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships.

...

[url removed, login to view] and [url removed, login to view] should be calculated DCPA, TCPA and range.

And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships.

May second, 2014 => same procedure.

May third, 2014 => same procedure.

...

last day

My purpose of this study is to find where is risk area of collision of two ships.

I have big data which is bigger than 4.0GB.

So, please should be considered speed for execution.

Is there anyone coding my project?

Habilidades: Matlab and Mathematica

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ID do Projeto: #11736281

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hmramezani

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naveedanjum92786

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khoddam

I bid to this project that let you know that your equation for finding distance of two ships is completely wrong. The equations in your matlab file is for Cartesian coordinate system, not spherical. Also you have inte Mais

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pkattan

Let me help you complete this project. I understand that you want to use your MATLAB algorithm to find the CPA distance for all the ships. But for how many days? I am interested in this project. I have MS and PhD degre Mais

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