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# Abdelwahab Afifi

##### Last seen: 2 jours ago
13 total contributions since 2019

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Question

How to generate polynomial matrix in classification problems ?
I have the fllowing samples [1 2] , [2 0] , [1 1], [3 1], [2 3], [3 3] which correspond to labels y : {0, 0, 0, 1, 1, 1} resp...

13 jours ago | 0 answers | 0

### 0

Question

The Number of coefficents of Time delay neural network
for the following Time delay neural network clc; clear all; close all; [X,T] = simpleseries_dataset; net1 = timedelaynet(1:2,...

2 mois ago | 1 answer | 0

### 1

Question

combining two neural networks in one bigger network
I have a trained NN1. Then I need to connect a NN2 to a NN1. Hence I treat the combined (NN1+NN2) as one large NN. However, dur...

3 mois ago | 2 answers | 0

### 2

Question

Set a specific weight for a connection in neural networks
I have already build my neural network. I wanna set a specific weight for the conection from layer i to layer j foe example .....

3 mois ago | 1 answer | 0

### 1

Question

How to define a multivariable function (for instance an anonymous function) of a number of variables that varies according to the size of an array variable?
I have two vectors input and output ,where is the number of samples I want to solve this problem as nonlinear least-squares...

3 mois ago | 1 answer | 0

### 1

Question

code gernation error using CUDA
I'm trying code generation Using the GPU Coder App as in the folowing link: https://www.mathworks.com/help/gpucoder/gs/gpu-cod...

3 mois ago | 1 answer | 0

### 1

Question

what is the problem of the Power Amplifier curve for this WCDMA measurements ?
I used the follwing link to get the data sets of input and output of PA to simluate PA model https://www.mathworks.com/help/si...

6 mois ago | 0 answers | 0

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Digital Predistortion for PA model
have you find the app that is used in this link ? https://www.mathworks.com/videos/digital-predistortion-for-power-amplifiers-6...

6 mois ago | 0

Question

How can I design flat magnitude response IIR filter ?
I want to design flat magnitude response IIR filter to simulate the memory effect of High Power Amplifier nonlinearities

6 mois ago | 1 answer | 0

### 1

Question

How can I Import complex vector to SIMULINK to analyze it using spectrum analyzer?
1- I'm trying to use From work space to import complex vector to simulink 2- I get this error message: "Unsupported input f...

6 mois ago | 1 answer | 0

### 1

Question

How can I specify AWGN block in SIMULINK?
How can I estimate the parameters of AWGN block for OFDM system with data samples = 52 64 subcarrier cyclic prefix=16 nuber...

7 mois ago | 1 answer | 0