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Questions related from Moahmed Aly
In Analog-to-Digital Converters(ADC), the signal is first sampled at a rate higher than or equal to the Nyquist, then quantized and encoded. In Analog-to-Informations (AIC), the sampling and...
28 October 2019 9,152 3 View
I am working on transmitting ECG signals over wireless body area network based on IEEE 802.15.4 standard. To reduce the BER and increase the signal reconstruction quality, I think that I need to...
25 December 2018 3,365 0 View
I need to compare a compressed sensing algorithm with two different sensing matrices . Thus,I need to compute the mutual information between the original signal X and the compresssed signal y=Φx....
31 October 2018 1,549 0 View
According to Nyquist, to transmit R symbols/sec without ISI, the minimum bandwidth required is R/2 Hz, and the sinc pulse shape satisfies this condition. 1. If we use equalizers instead of pulse...
11 August 2018 1,993 0 View
I am working with transmitting EEG signals in a wireless body area network over a fading channel. I need to denoise these signals. What is the best denoise technique for EEG signal ?
29 October 2017 1,510 6 View
I am working on denoising EEG signals. The signal consists of 80 epochs. The denoising parameters which give the best results differ from one epoch to another. How can I deal with this problem?
13 July 2017 6,143 1 View
I am using the following matrices compare the transmitted and the reconstructed decompressed signal at the receiver . At SNR = 10 , the SSIM = 0.489 and the cross correlation is 0.92 . Is this...
12 May 2017 7,260 0 View
For a complex signal x to be transmitted over a channel with complex impulse response h, x will be convolved with h. What will the mathematical operation done in the reveiver to cancel the effect...
19 April 2017 2,555 4 View
In WBAN, pulses are transmitted from an antenna , diffract around the body and can reflect off of arms and shoulders. so there are always two clusters of multi path components due to the initial...
16 April 2017 8,063 2 View
what is the difference between random binary sensing matrix and random Gaussian sensing matrix?? What the advantages and disadvantages of each matrix?? How can i choose the suitable matrix for a...
12 April 2017 4,670 1 View
I am working on transmitting EEG signals over wireless body area network. I have applied two different compression techniques: DCT-based and compressive sensing (CS-based) approach. I noticed that...
09 March 2017 9,751 2 View
I am working on a research work on transmitting ECG signals compressed by Compressed sensing over wireless body area network . The signal is affected by noise and small scale fading. The...
01 January 1970 1,056 4 View
