• Status Completed
• Budget \$10 - \$30 USD
• Total Bids 2

Project Description

Hello.

My sample data is constructed the structure type of Matlab.

My data description is as follows;

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

I have one code about interpolation of shipâ€™s data(date, time, longitude, latitude, speed, course).

The time interval of shipâ€™s location is 2~35 second(less than 180 second).

Example;

The collection time of shipâ€™s data 09:40:56, 09:41:06, 09:41:17... (hour : minute : second)

I want to know the shipâ€™s data at 09:40:57~09:41:05, 09:41:07~09:41:16...

I want to know the shipâ€™s data per second.

So, I solved it the spline interpolation at latitude and longitude data.

And, I solved it the linear interpolation at speed and course data.

I shared you my sample data on google drive.

Also I attatched one matlab code and one powerpoint for explanation of data and project.

I want to solve two problems.

First interpolation of course.

Course is from 000 degree to 359 degree.

For example,

when ship turn counterclockwise from 016 degree to 335 degree,

result of my code is made by clockwise.

016â†’019â†’022â†’....â†’335

It is wrong.

It should be made such like that 016â†’010â†’005â†’000â†’355â†’350â†’345â†’340â†’335.

when ship turn clockwise from 336 degree to 007 degree,

result of my code is made by counterclockwise.

336â†’320â†’310â†’.300â†’290â†’275â†’...â†’007

It is wrong.

It should be made such like that 336â†’350â†’355â†’000â†’005â†’007

Second execution speed improvement of MATLAB code.

My code is very slow. Thatâ€™s why execution speed improvement of my code is key.

It takes very long time.

I want to improve speed my code with new thinking.

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