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Questions related to Signal Processing
The Fourier transform of the Guassian signal is again a Guassian signal. Is it from the duality property of the Fourier transform?
24 July 2016 9,022 4 View
I met a problem on using the piezoelectric actuator to actively stabilize the homodyne interferometry to avoid the signal fading problem and to eliminate the experimental low frequency noises. The...
09 July 2016 7,287 8 View
I am trying to convert random wave into number of uniform sine waves (frequency spectrum) using FFT in MATALB. My concern is to optimize the selection of the best 3-5 sine waves and create the...
06 July 2016 3,690 6 View
In most scenarios in wireless communications we don't know the TX power because we don't have access to the transmitter, but we can measure the RX power from the RX signal. Is there a way to...
26 June 2016 1,974 14 View
I'm working on microwave imaging systems for breast cancer detection. As I am new in this field, I want to know about the most important measures or variables that can assist to find out quality...
24 June 2016 4,454 1 View
I want to make fourth order bandpass filter so let me know how to design for qubit application.If any filter exist in literature please send me.
12 June 2016 4,740 3 View
Hi I am confused about the concept of signal quality index. what is signal quality index? what is the relation between signal quality index and signal strength? can we determine signal strength...
04 June 2016 4,019 4 View
Hi, in GSM localization application, can anyone tell me the relationship between the signal noise measurement and the variation in signal distance. My research field is Localization Based...
02 June 2016 4,716 3 View
Hello Everyone, I am trying to make spectrum in same amplitude, therefore i have used gain flattening filter to chop out the noise and make all the spectral lines in same amplitude in optisystem....
31 May 2016 3,034 3 View
I have few different signal to noise ratio value I extracted from Matlab, some are negative and some are positive. is it possible to normalize the negative values to get the equivalent positive...
31 May 2016 1,720 9 View
When we deal with lack of peak capacity of chromatography columns, we encounter coelution of compounds. Moreover, due to some fluctuations in temperature, flow rate, pressure, matrix effect,...
23 May 2016 3,575 2 View
When we compare the angle of estimation of Classical (delay and sum), Capon, MUSIC and Root-MUSIC, while the direction of arrivals are 10`, 30` and 50` degree, which algorithm has good performance...
19 May 2016 8,826 5 View
I am wondering about the better audio compression technique that can be used in real time with a higher compression ratio, low computational complexity, and low latency. Actually, I am confused...
16 May 2016 6,530 3 View
suppose i am looking for a Raman peak 1450 per cm in my spectra data obtained from biological sample. However, in spite of applying the same instrumental optimal parameters (e.g. exposure times,...
12 May 2016 3,190 6 View
I have a magnitude (Z) -bode plot with frequency but I want to convert it into Nquist plot. Can anyone help me and show me how to convert this Magnitude bode plot into Nquist plot Please...
11 May 2016 1,607 4 View
RADAR echoes can provide information about the atmospheric constituents like water vapor,temperature, wind etc. Now, if we send a vhf/uhf signal from space and receive it on earth, will it be...
05 May 2016 10,050 6 View
In underlay spectrum access,we know that the average transmitting power of the primary user is known by the secondary user as SU can transmit data within a threshold level.but what other primary...
27 April 2016 2,997 3 View
If Z-transform of x(k) is X(z), then what will be the Z-transform of sign(x(k))? Furthermore, what will be the Z transform of sign(x(k-1))?
23 April 2016 1,561 1 View
More specifically, is it possible to calculate the signal-to-noise ratio (SNR) for EMG signals? For example I thought of computing the ratio between 100% MVC and 0% MVC amplitude (baseline noise)...
21 April 2016 9,322 5 View
From papers, i know that the frequency range of the AE in a machining is averagely 100khz-300khz, although the different material has different frequency range. But i still can't make sure what...
20 April 2016 3,343 10 View
I am trying to implement differentiation in FPGA Verilog. For that i need to have a sample of signal which is going to be differentiated and the sampling period . Sampling period i have taken as...
07 April 2016 6,796 5 View
I attached the signal output of the encoder. I want to count the number of pulses. How can I count pulses using Matlab software. I attached the signal outputs. Would you please help me.
07 April 2016 7,872 9 View
I need to know the origin/root cause of the CEE. e.g. We know that one of the causes is imperfect channel estimation. But I want to know what are the factors that lead to this imperfect channel...
07 April 2016 1,917 2 View
How to find the signal to noise ratio of any signal when the input is a random signal from the machinery. Without using any thresholding or the mean and sd to calculate the SNR as Matlab does.
06 April 2016 899 17 View