# Questions tagged [pulse]

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### Extracting time-tagged pulses from Geiger audio recording

I am doing some tests with SmartGeiger detector designed for smartphones. The sensor unit sends pulses via phone microphone jack input and the app does the counting and calculates the values. However,...
27 views

### How can I generate a time domain square pulse that relies on frequency and not zero centered at MATLAB?

I want to create a square pulse, then use FFT on it. However, this code does not relies on central frequency to generate a pulse, and it is centered at 0 in time and frequency. ...
25 views

### How do I make a Gaussian pulse that works on different wavelengths in MATLAB?

I want to make this MATLAB code to plot a Gaussian pulse in THz, then use FFT on it. This is the MATLAB code I used to get the FFT of time domain Gaussian signal at 800nm wavelength: ...
46 views

### Minimizing Time Sidelobes with Pulse Compression

I am trying to compute a compression filter function to minimize the error from a a desired pulse compression result. The usual approach to doing this is to minimize the RMS error of the the ...
132 views

### Difference between Fourier-Transform and FFT of rectangular pulse

I'm trying to find a link between the Fourier-Transformation of aperiodic Signals and the FFT of them. So to start with a basic example, let's take a rectangular pulse with width 0.1s and amplitude of ...
219 views

### What is the autocorrelation of a Dirac pulse?

What is the autocorrelation of $x(t) = \delta(t)$? Can you explain to me how to calculate it?
96 views

### Upsampling and pulse duration

How does upsampling factor relate to pulse duration? If I want to do pulse shaping and I have rcosdesign(beta,span=8,sps=4) should I upsample by ...
57 views

### Which physical device accomplish the task of pulse shaping?

So I'm reading a lot about DSP lately and now I'm learning about pulse shaping. I understand the way it works and how useful it is to avoid (or reduce) ISI. But, I was wondering which physical device ...
793 views

### Fourier Transform of Alternating Periodic Rectangular Pulse

I'm having trouble determining Fourier transform of signal. I have 2 ideas on how to solve this problem. Given the signal is periodic I could use formula for Fourier transform of periodic signals: ...
216 views

### SOQPSK-TG pulse shaping

I'm trying to build an SOQPSK-TG signal in MATLAB/Octave. I am following this paper for formulas. I'm trying to generate a waveform for the phase, equation 2.4: Where q(t) is the phase pulse, ...
420 views

### Detection of sharp peaks in an audio signal

I have an audio signal and I'm interested to detect the very sharp peaks. If I zoom, here is something that should NOT be detected (this is voice actually): NO GOOD Here is something that should be ...
289 views

### Estimate peak width from a vector that is a superposition of unknown number of identical Gaussian peaks with different heights?

If you have a vector that is a superposition of an unknown number of identical Gaussian shaped peaks/impulses of unknown width (but all the same width) and different amplitudes (with Poisson or ...
182 views

### Pulse duration detection

I have a signal sequence where multiple pulses with different amplitude and duration may occur at random times. White noise is present as well. I was searching for a Matlab function which could detect ...
108 views

### Increase Radar Detection range using Modulation

I have been reading about pulse compression which helps with the range resolution. In my application I do not need to measure the range of the object however I am more interested in boosting the SNR ...
Assume a monostatic radar is transmitting a pulsed waveform. The pulse has been modulated by a Barker code with$\ N$ chips or bits. The waveform chip rate is $\tau_c$, the radar receiver's detection ...
I'm trying to analyze the probability of detection ($P_d$) for a Swerling II target. I know that the Swerling II target assumes that the Radar Cross Section (RCS) is an exponential probability density ...