calculate the energy of a signal

Similar Questions

• How to calculate the signal / noise from the graph?

  In my current project, I read a periphera voltage signal. the signal lead noise even after filtering.  So, to identify the necessary data, I averaged the signal.

  I have attached the file with an image of graphics. In this graph, the recorded data are drawn black and medium online graph is plotted in red. Now, I have to calculate the ratio of signal to noise to specify with these peak values. How to do?

  As the signal passes through zero, be careful in the way you set the signal / noise.  For sinusoidal signals, that ratio is defined as the RMS value of the noise (the signal with the desired sinusoidal signal deleted) divided by the effective value of sinusoidal component.

  First of all I would like to subtract the average value of the raw signal.  The difference is the noise.  You can set the signal / noise.  A RMS calculation might work.  If you have a mathematical model for the desired signal, a fitting for this model can be useful too.

  Lynn

• Calculate the peak-to-Peak Amplitude

  I wonder if it is possible to calculate the amplitude peak to peak of a sine wave. I have a waveform of a proximeter for a period of ten seconds and would like to calculate the amplitude peak to peak for each cycle.

  The DIAdem analysis window has a peak/Valley feature that will allow you to find the peaks and valleys of a signal.   Depending on the exact service you use, you can either keep those results as a 'results chain' or a new property of the wave.  Whatever it is, once you have found the peaks and valleys, you can add the pic to the absolute value of the value to find the full peak-to-peak amplitude.

  If you need to do this in an automated way, you can write a script fast enough to call these functions programmatically.

• Calculate the speed of the target by using photoelectric sensors 2

  I use 2 photoelectric sensors mounted parallel to each other. As the target passes in front of the sensor, the signal of output voltage goes from 0V to 10V. Because I know that the distance between the sensors, I need to use the difference of rise time of the signal between the sensors to calculate speeds. I can do that when I export the data to excel, but I would do it automatically into my LabVIEW code.

  The data of my sensors are the type of waveform. I can extract the waveform (t0, dt, Y) components using 'Get waveform components' and then look for the timestamp for each value using t0, dt and index value. I need to calculate the timestamp of each sensor once the signal passes to 10V (Y = 10V). I can't extract the components of waveform for signals from sensors (seems to only be able to extract the components for a sensor) and once I extracted components, setting up my calculation of the speed. I think I need a case structure to save the timestamp, once the signal hits first 10V (if Y = 10V save timestamp; if Y = 0V continue indexing of values).

  Any suggestions on the extraction of components of form of wave or indexation of values and calculation speed are greatly appreciated! The code I wrote to collect signals is attached.

  Thank you very much

  Alberto M.

  Here is a sample of the signals of the sensor showing the difference of signal rise time.

  

  1. you must use the finished sample mode and read all samples.  To match what you have, I would use 10 k samples.  That would be 5 seconds worth of data.  This eliminates the need for the while loop and gives you the full waveforms.

  2. just use the base trigger level detection VI (in the Signal Processing-> measures of waveform-> palette of Waveform Monitoring) to get the time for every rising edge.  Then it's a simple subtraction and divide.

  

  In addition, if you want to make things even easier, you could have used a camera with a meter of A - B.  Then the meter gives you just the time difference directly.

• How to calculate the standard deviation of a certain number of points?

  Hi, I have a request that I acquire signals of strength and Pu, then on a table.

  I need to calculate the standard deviation and the mean each a number of points, 1000 for example.

  I have problems with this, if you can help me I would be grateful.

  Thank you

  Douglas

  If you need something like this?

  

• With the mouse to draw the edges of a XY Chart to calculate the perimeter and area of him

  I have signals from a stabilometer... I traced X in terms of y in a XY Chart and I want to know how I can draw with the mouse a circle linking most of the points that is the graph of X on Y and calculate the area of her more perimeter. I joined my program labview with two files X and Y

  LV 2009 Version attached.

• Calculate the average per slot?

  Hi Chaps,

  I am a beginner on numbers (almost everything on Mac I would say) and I need help to calculate average values.

  These are calculated values (column 2) taken on a specific time of the day (column 1).
  I managed to create a third using a built-in function to get the time slot (column 3).

  14:58:42	235	14
  14:59:42	274	14
  15:00:50	7937	15
  15:01:55	5157	15
  16:02:57	1822	16
  16:03:57	207	16

  Can please somebody see me step by step how to calculate the average by time slot as below?

  14	254,5
  15	6547
  16	1014,5

  Kind regards

  Stone

  This can help you

  

  Assuming you data in a table named 'Data' and the information is summarised in another table (right) named "Summary".

  Select cell B1 in the summary table and then type (or copy and paste from here):

  = SUMIF(Data::C,a1,Data::B) ÷COUNTIF (Data::C, a1)

  shortcut for this is:

  B1 = SUMIF(Data::C,a1,Data::B) ÷COUNTIF (Data::C, a1)

  Select cell B1, copy

  Select column B, paste

• I want you to help because the phone asking me to become a frequent and annoying enter a password to calculate the icloud

  Hello

  I want you to help because the phone ask me for becoming a frequent and annoying password to calculate the icloud, and I do not know because I bought a phone from someone else is not new Hama is on the phone (*) No. account. IMEI (*) Please help me soon thank you

  < post branched out by host >

  < personal information under the direction of the host >

  Robert Odamat says:

  Hello

  I want you to help because the phone ask me for becoming a frequent and annoying password to calculate the icloud, and I do not know because I bought a phone from someone else is not new Hama is on the phone (*) No. account. IMEI (*) Please help me soon thank you

  < post branched out by host >

  < personal information under the direction of the host >

  Find my iPhone Activation Lock - Apple Support

  There is nothing you can do to get around activation icloud blocking without recovering the former owners information.

  Communicate with the person that you bought the phone.

• Will the 'flights climbed' work and calculate the altitude of an aircraft?

  I'm going on vacation soon and everything I just want to know my iPhone 6s will calculate the flights climbed when the plane is in the Air?

  You will be on a plane with steps?

• How to calculate the hours between two dates by the numbers

  If I update 09:00 start time 17:00 end time of shift in C3 and B3, how to use a D3 formula to calculate the number of hours between the two?  Then I can just copy down the lines for nth years...

  It is a spreadsheet of the part-time staff payroll.

  I'm sure that a lot of people out there have done that.

  Help, please.

  Thank you.

  Eddie

  What program of worksheet that you are using? Since you have a newer iMac running El Capitan, I can safely assume that you use NOT AppleWorks, which is a Power PC application that can run on any OS newer than the snow leopard, OS X 10.6.8.

  If you use numbers, try to repost your question in numbers for Mac forum. If you use Microsoft Excel, try posting in the Microsoft forums. LibreOffice also has community support.

• Why the extreme to express signal is broken

  I have an Airport Extreme b, g, n, ac cable (ethernet) to my router Verizon Wireless. The router has been updated by Verizon end of last year and works very well. From there, I have an iMac with 802.11 b/g/n/ac cable into the extreme as well. I have a Windows pc in another room wired with ethernet to the extreme as well.

  At the back of my house, I have an Airport Express b/g/n I used to extend my Airport Extreme signal for the past 18 months without any problem. I had problems of signal with the Express and it seems to re-defining the Express worked, but the image of my signal has changed my Airport utility on my iMac. Previously, the signal was solid from the far down to the Express, and the image on my iPhone 6, at the launch of my Airport utility has been broken from the extreme to the Express.

  Now the images are reversed where my iPhone has the solid signal, and my iMac broke the line signal. Someone knows why? It works, but the lines threw me.

  A dotted line between the terminal of the AirPort Express and AirPort Extreme indicates that the Express connects to the extreme by using a wireless connection.

  What do you want?... or... the Express linking to the extreme by using a wired Ethernet cable connection?  If If this is the case, there should be a continuous line between the Express and Extreme.

  What device do you have used when you reset and reconfigured the Express... the iMac or the iPhone?

  Did you completely turn off the iPhone, has waited a minute or two and then he fed up and checked the AirPort utility again this way?

• How to calculate the difference between two times by the NUMBERS

  I'm so bothered by the fact that I can't understand that.

  Cell B2 - 08:00

  Cell C2 - 10:50

  (How can cell D2 - I get this cell to calculate the difference and say 02:50?)

  I know it's probably one of the most basic operations, but for the life of me I can't understand it. The cells B2 and C2 are formatted for a 24-hour clock. But if I tell the system to just subtract the two, I get "0,118. Everything I find on the forum search goes beyond what I need. Can someone help me?

  Thank you

  Hi sapirs,

  Departure and arrival of the cells are in Date and time with Date format: no and time: 24-hour clock.

  

  Formula in D2 (fill down)

  = C2−B2

  

  The results become a duration format, but under automatic (numbers automatically worth this format)

  

  If you wish, you can change the cells of lasting results.

  What Data Format have your result cells?

  Kind regards

  Ian.

• I don't have the energy saver for my laptop

  I need help!
  I don't have the energy saver for my laptop.
  I have power options regular when I plugged it, but it is dimmed. When I click on the Console of the Toshiba power management, nothing happens. It is not in Add/Rem
  I must have deleted it by mistake.
  Is there a way to get the power management and power of return Options?

  Thank you!

  Hello

  Well, normally you should find on your CD of tools & utilities delivered horsepower
  If you want you can also see the Toshiba driver download page.
  The other possibility is to use the Windows System Restore tool.
  This tool restores the system window to the start time.
  Energy saving needs to be replaced again.

• How to calculate the execution time of a SCTL in FPGA VI?

  Hello

  Can someone guide me that how to calculate the execution time of a SCTL for an iteration in the FPGA VI?

  Thank you and best regards,

  Rashid

  Hello r,.

  A SCTL will always run in a beat the clock it has been linked to.  So, if you use a 40 MHz clock, this loop will run in 25 ns.  If the code cannot complete in that, or if it requires two graduations of the watch to do the calculation, your code does not compile, then you have the guarantee that this will always be how long it takes this piece of code to run.

• How to calculate the equation of dataset using 'Fitting VI' (non-linear or polynomial fit)?

  I have the datasheet of a NTC (thermistor negative Coefficient) and I want to calculate the most approximate equation

  that describes its behavior. The table has values of temperature and resistance. If the resistance of the NTC varies according to the temperature it detects. I tried the following:

  -Excel: polynomial adjustment

  -Maple: polynomial adjustment

  -LabVIEW: Polynomial Fit.vi

  I've been doing equations with a not very good approximate parameteres. I suspect that this method 'Polynomial FIT' it is not the best method for this type of data/equation (being a non-linear equation).

  So is - that someone has used the non-linear Fit.vi matching the behavior of a dataset object? If so, can you explain how this VI... I would really appreciate it.

  Thanks in advance and I will wait for your reply.