Complex numbers input in neural networks

11 次查看（过去 30 天）
Saurabh Kulkarni
Saurabh Kulkarni 2018-6-11
评论： Priya Jose 2019-11-27
I need to extract features and train a neural network from frequency response data (magnitude and phase vs. frequency). The magnitude and phase is essentially form a complex number. I have 100 samples and each sample has 1000 magnitude and phase data points. The frequency range is the same for all data. What is the best way to feed this data to the “nntriantool. As far as I know this tool will not accept complex numbers. I cannot feed the magnitude and phase data separately, since it occurs as a pair. If the only way is to write my own neural network, how can I pass the input data as a pair OR will the neural network toolbox functions accept complex numbers as arguments Thanks in advance.

请先登录，再回答此问题。

采纳的回答

Anton Semechko
Anton Semechko 2018-6-11
You can represent a complex number, a+i*b, as a 2-vector [a b], so use that format instead. Suppose that F is an array of complex numbers, then to you can get real and imaginary components of F as follows: [real(F) imag(F)]
  4 个评论
显示 2更早的评论
Saurabh Kulkarni
Saurabh Kulkarni 2018-6-11
Thanks again Anton. I just created an array as you suggested. Looks like the nftool app will not accept this array as an input so I will go ahead and create my own Neural Network to process this array.
Priya Jose
Priya Jose 2019-11-27
Sir how dso you create your own neural network? i also want to add complex number target for training using nnstart.(fitting app)

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Image Data Workflows 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by