Mixing
Eliminating minor crests/troughs in a tidal curve
$begingroup$
I have some tidal data, I only have the turning points of the curve.
I want to eliminate the minor troughs/crests so I only get the high and low tide without the minor variations.
The curve
Is there a good method for this?
My curve is not a fixed length or amplitude and its important I keep the actual high and lows.
I will be trying implementing it in code to filter the data
curves wavelets
asked Jan 31 at 12:39
user430214user430214
11
$endgroup$
add a comment |
$begingroup$
I have some tidal data, I only have the turning points of the curve.
I want to eliminate the minor troughs/crests so I only get the high and low tide without the minor variations.
The curve
Is there a good method for this?
My curve is not a fixed length or amplitude and its important I keep the actual high and lows.
I will be trying implementing it in code to filter the data
curves wavelets
asked Jan 31 at 12:39
user430214user430214
11
$endgroup$
1
$begingroup$
You mean like a high-pass filter for the frequency?
$endgroup$
– Matti P.
Jan 31 at 12:52
$begingroup$
maybe, Im not sure, I'll take a look at high-pass filters though thanks
$endgroup$
– user430214
Jan 31 at 13:32
$begingroup$
it seems a high pass filter would be ok but how would I work out what value is required to filter out the items I want. I think thats the main crux of my problem, I want this to work with waves that have very different values so I need a method of working out a working filter value for each set of data.
$endgroup$
– user430214
Jan 31 at 13:45
add a comment |
$begingroup$
I have some tidal data, I only have the turning points of the curve.
I want to eliminate the minor troughs/crests so I only get the high and low tide without the minor variations.
The curve
Is there a good method for this?
My curve is not a fixed length or amplitude and its important I keep the actual high and lows.
I will be trying implementing it in code to filter the data
curves wavelets
asked Jan 31 at 12:39
user430214user430214
11
$endgroup$
I have some tidal data, I only have the turning points of the curve.
I want to eliminate the minor troughs/crests so I only get the high and low tide without the minor variations.
The curve
Is there a good method for this?
My curve is not a fixed length or amplitude and its important I keep the actual high and lows.
I will be trying implementing it in code to filter the data
curves wavelets
curves wavelets
asked Jan 31 at 12:39
user430214user430214
11
asked Jan 31 at 12:39
user430214user430214
11
asked Jan 31 at 12:39
user430214user430214
11
asked Jan 31 at 12:39
user430214user430214
11
asked Jan 31 at 12:39
user430214user430214
11
11
1
$begingroup$
You mean like a high-pass filter for the frequency?
$endgroup$
– Matti P.
Jan 31 at 12:52
$begingroup$
maybe, Im not sure, I'll take a look at high-pass filters though thanks
$endgroup$
– user430214
Jan 31 at 13:32
$begingroup$
it seems a high pass filter would be ok but how would I work out what value is required to filter out the items I want. I think thats the main crux of my problem, I want this to work with waves that have very different values so I need a method of working out a working filter value for each set of data.
$endgroup$
– user430214
Jan 31 at 13:45
add a comment |
1
$begingroup$
You mean like a high-pass filter for the frequency?
$endgroup$
– Matti P.
Jan 31 at 12:52
$begingroup$
maybe, Im not sure, I'll take a look at high-pass filters though thanks
$endgroup$
– user430214
Jan 31 at 13:32
$begingroup$
it seems a high pass filter would be ok but how would I work out what value is required to filter out the items I want. I think thats the main crux of my problem, I want this to work with waves that have very different values so I need a method of working out a working filter value for each set of data.
$endgroup$
– user430214
Jan 31 at 13:45
1
1
$begingroup$
You mean like a high-pass filter for the frequency?
$endgroup$
– Matti P.
Jan 31 at 12:52
$begingroup$
You mean like a high-pass filter for the frequency?
$endgroup$
– Matti P.
Jan 31 at 12:52
$begingroup$
maybe, Im not sure, I'll take a look at high-pass filters though thanks
$endgroup$
– user430214
Jan 31 at 13:32
$begingroup$
maybe, Im not sure, I'll take a look at high-pass filters though thanks
$endgroup$
– user430214
Jan 31 at 13:32
$begingroup$
it seems a high pass filter would be ok but how would I work out what value is required to filter out the items I want. I think thats the main crux of my problem, I want this to work with waves that have very different values so I need a method of working out a working filter value for each set of data.
$endgroup$
– user430214
Jan 31 at 13:45
$begingroup$
it seems a high pass filter would be ok but how would I work out what value is required to filter out the items I want. I think thats the main crux of my problem, I want this to work with waves that have very different values so I need a method of working out a working filter value for each set of data.
$endgroup$
– user430214
Jan 31 at 13:45
add a comment |
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1
$begingroup$
You mean like a high-pass filter for the frequency?
$endgroup$
– Matti P.
Jan 31 at 12:52
$begingroup$
maybe, Im not sure, I'll take a look at high-pass filters though thanks
$endgroup$
– user430214
Jan 31 at 13:32
$begingroup$
it seems a high pass filter would be ok but how would I work out what value is required to filter out the items I want. I think thats the main crux of my problem, I want this to work with waves that have very different values so I need a method of working out a working filter value for each set of data.
$endgroup$
– user430214
Jan 31 at 13:45