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Aly Khafagy


Last seen: 11 months ago |  Active since 2020

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Visible Light Communication (VLC) indoor positioning based on Received Signal Strength (RSS)
I need to obtain the estimated distance from the Received Signal Strength (RSS) through the Lamberian equation. these are my fo...

11 months ago | 1 answer | 0

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answer

Question


I want to modulate these bits [1 0 1 1] with 1k, 3k, 5k, 7k respectively. the signals should be square wave with range from 0 to 1, then plot to me the results.
I want to modulate 4 LEDs with these bits [1 0 1 1] with 1k, 3k, 5k, 7k respectively. the signals should be square wave with ra...

1 year ago | 1 answer | 0

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answer

Question


How to modulate four LEDs with unique frequency modulator (F-ID) method (1k,1.25k.1.75k,2k)??
How to modulate four LEDs with unique frequency modulator (F-ID) method (1k,1.25k.1.75k,2k)??

1 year ago | 1 answer | 0

1

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Question


How to modulate a Light emitting diode (LED) with four different frequencies: 1k, 1.25k, 1.75k and 2k? I want to modulate the LED to use it in indoor positioning process.
How to modulate four Light emitting diodes (LEDs) with four different frequencies: 1k, 1.25k, 1.75k and 2k? I want to modulate ...

1 year ago | 1 answer | 0

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Question


how can i enter a signal in a Rayleigh fading channel?? note that my signal size is 1x2020. the goal that my signal be facing multipath propagation.
how can i enter a signal in a Rayleigh fading channel?? note that my signal size is 1x2020. the goal that my signal be facing ...

1 year ago | 1 answer | 0

1

answer

Question


how to obtain the impulse response of halfband FIR filter
how to obtain the impulse response of halfband FIR filter?? clc; close all; n1= 15; %order Fs= 100; %sampling frequency f...

2 years ago | 1 answer | 0

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Question


mirroring a magnitude response of a filter from -1 to 1
This code shows the FIR filter magnitude response with the normalized frequency through interval from [0 to pi] in a figure, my...

2 years ago | 2 answers | 0

2

answers

Question


This code shows the FIR filter magnitude response with the normalized frequency from 0 to pi, how i can make mirroring of this magnitude response to start from -pi to pi ??
This code shows the FIR filter magnitude response with the normalized frequency through interval from [0 to pi] in a figure, my...

2 years ago | 1 answer | 0

1

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Question


this code simulating laser output power respect to time for different laser dimensions length, width and diameter of cavity. Can anyone explain indetail this part of the code
LL=[250E-6, 250E-6, 500E-6, 500E-6, 250E-6, 500E-6]; %cavity length ww=[5E-6, 10E-6, 5E-6, 10E-6, 5E-6, 10E-6]; %cavity width...

2 years ago | 0 answers | 0

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Question


i have a single row vector contains 0s and 1s and want to convert every 3 bits into integer how can i do that??
i have a single row vector contains 0s and 1s and want to convert every 3 bits in this vector into integer how can i do that?? ...

2 years ago | 3 answers | 0

3

answers

Question


Plot a signal in an interval of time
how do i plot this signal in specific interval from -2 to 2 Xnsum= transXn (:) ;

4 years ago | 1 answer | 0

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