Community Profile

photo

john karli


Last seen: 2 months ago Active since 2018

Statistics

  • First Answer
  • Thankful Level 3

View badges

Content Feed

View by

Question


What should be accuracy of deep learning model while changing the SNR from [-20,-10,0,10,20,30]?
I am using the following link to generate the dataset on different SNR. I am not good in signal domain. https://www.mathworks....

8 months ago | 0 answers | 0

0

answers

Question


how to copy a specific files from one folder to another folder?
I have Folder name as 8PSK and it contain 5000 files. but i need first 3500 files (frame_snr-108PSK101: frame_snr-108PSK3500) to...

9 months ago | 1 answer | 0

1

answer

Answered
Why i Get low accuracy when i give unseen data to Trained Model?
I am using the same link for data generation and training a model. the above code is modified version of the below link. you can...

9 months ago | 0

Question


Why i Get low accuracy when i give unseen data to Trained Model?
I have combine dataset of signals which have 14 classes. I have split them using imds = imageDatastore('E:\SNR-Dataset\DATA-11...

9 months ago | 2 answers | 0

2

answers

Question


How to plot network performance?
I am trying to plot the network performance using following code [net2,tr] = trainNetwork(augimdsTrain,lgraph,options); f...

9 months ago | 2 answers | 0

2

answers

Answered
Sudden change in training curve?
Thata my input where i need to add dropout layer?

10 months ago | 0

Question


Error in helperModClassTrainingOptions (line 29) 'CheckpointPath',checkpointPath,...
I want to train the model using following link https://www.mathworks.com/help/deeplearning/ug/modulation-classification-with-de...

10 months ago | 1 answer | 0

1

answer

Question


Warning: Variable 'rxTrainFrames' was not saved. For variables larger than 2GB use MAT-file version 7.3 or later
How do i keep the rxTrainFrame into workspace? my code is dataDirectory = 'E:\SNR-Dataset\Data-18-time' frameDS = signalData...

11 months ago | 1 answer | 0

1

answer

Question


Sudden change in training curve?
I am training the resnet 50 model and when i stop the training the curve goes to 99% but while training its reached to 72%. I do...

11 months ago | 2 answers | 0

2

answers

Question


How to train resnet50 model on multiple input?
I am following the belw link to make the multiple input network https://www.mathworks.com/matlabcentral/fileexchange/74760-ima...

12 months ago | 1 answer | 0

1

answer

Question


unrecognized method property or field Labels for class augmentdatastore?
I am tring to train the model on .mat dataset. i have train the model sucessfully but when i tried to find the accuracy i got th...

12 months ago | 1 answer | 0

1

answer

Question


How to covert back the gray scale image into rgb?
I am trying to crop the image using its pixel value and the n convert into rgb again but when i get back the rgb image its in th...

1 year ago | 1 answer | 0

1

answer

Question


Out of memory on device. To view more detail about available memory on the GPU, use 'gpuDevice()'. If the problem persists, reset the GPU by calling 'gpuDevice(1)
I want to train the model in .mat dataset but i am getting the memory error my dataset size is [256,340,2] when i try gpuDevi...

1 year ago | 1 answer | 0

1

answer

Question


How to downsize image in x and y direction?
I have image with size 484x680 and i want to downsize with fector 2. final size should be 241x340. i have tried it but it downs...

1 year ago | 2 answers | 0

2

answers

Question


Unable to perform assignment because the size of the left side is 465-by-680 and the size of the right side is 482-by-680.
I am trying to get the specefic row and colum where row or column is less the 255. Then a want to save them in a variable, becas...

1 year ago | 2 answers | 0

2

answers

Question


Error using trainNetwork (line 184) Conversion to single from struct is not possible.
I am trying to implement the resnet50 on signal dataset.I have a database in which I have 10 folders(Each folder has 12 subfolde...

1 year ago | 1 answer | 0

1

answer

Question


'LabelSource' is not a recognized parameter. For a list of valid name-value pair arguments, see the documentation for signalDatastore.
I have dataset of .mat file which is present in folders. I want to read the folder name as label. but it did't work imds = sign...

1 year ago | 0 answers | 0

0

answers

Question


How to crate datastore for .mat file dataset?
I have 3 classes and each class contain 2000 sample of .mat. for example 2PSK fram2psk1.mat, fram2psk2.mat, fram2psk...

1 year ago | 2 answers | 0

2

answers

Question


How to solve Unable to read file: 'E:\TIME-IQ\128QAM\frame_snr30iq_128QAM_100.mat'?
I have dataset in .mat file and shape of dataset is [2,1280,2]. I have change the inpu layer of the model by using the deepNetwo...

1 year ago | 0 answers | 0

0

answers

Question


how to change the helperModClassIQAsPages(in) function for .mat dataset
I have two channel dataset which is size is [2,1280,2] and my labelsource is subfolders. i want to change the below function bec...

1 year ago | 0 answers | 0

0

answers

Question


How to use imageDatastore function to train model on .mat file dataset?
I have dataset of [2PSK,8PSK,4PSK] and its size is [2,1280,2]. I have change the input layer of the model but when i run followi...

1 year ago | 1 answer | 0

1

answer

Question


How to concatenate output of two train model and do Overhead Classification?
I have eye-dagram dataset of [BPSK,QPSK,8PSK,2PSK]. one model trained on just I sample and one is trained on Q sample. I have at...

1 year ago | 0 answers | 0

0

answers

Question


How to extract the I and Q values from eye-diagram function into separate Variable?
I have .mat file of a signal and i get the eyediagram of that signal. when i look at the workspace its the 1x1Figure. but i need...

1 year ago | 1 answer | 0

1

answer

Question


How to solve error A filename must be supplied in imwrite?
I have multiple rgb images in a folder and i want to convert them into gray scale and the save them into another folder code ...

1 year ago | 1 answer | 0

1

answer

Question


Error Using 'augmentedImageDatastore class.
I am using the following matlab builtin example openExample('nnet/TransferLearningUsingGoogLeNetExample') when i run the au...

1 year ago | 0 answers | 0

0

answers

Question


Error in saving plot as PNG?
for i = 3386:5100 %mkdir 8PSK x = load(['frame_snr016QAM' num2str(i) '.mat']); sps = 8; eyediagram( x.frame ...

1 year ago | 2 answers | 0

2

answers

Question


How to off the axis in eye diagram and save as image?
I have plot the eyediagram of B-FM modulation and i want to remove the axis from it and then save it as png. I have tried a =...

1 year ago | 2 answers | 0

2

answers

Question


How to get spectral image of .mat file?
I have .mat file of modulation signal and i want to plot the spectral image from it? how can i do it ? I have attached the .mat...

1 year ago | 0 answers | 0

0

answers

Question


How to save object in .mat file when object has private or protected properties
I want to save the dataset but its not saving the exect file and giving me the following warning. Warning: The helperModClassTe...

1 year ago | 0 answers | 0

0

answers

Question


how to plot 1x22000 struct with 1 field??
I have signal data which contain 1x1 struct with 22000 field i want ot plot these. I also upload the workspace of dataset.thank ...

3 years ago | 1 answer | 0

1

answer

Load more