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I am trying to implement a basic digital modulation scheme (BPSK) with a low data rate of 5 kbps. The requirement is to support a frequency offset of +/- 10...
Asked on 12/28/2021
1 answerConsider the Fourier transform $F(omega)$ of the function $f(t)$. The magnitude of $F(omega)$ depends on $omega$ and thus also depends on the scale of the ...
Asked on 12/28/2021
1 answerI'm doing a research about personality identification based on their signature using CNN method, however the learning feature for the personality traits have a different input size. I understand that...
Asked on 12/24/2021 by Smurf Again
1 answerI am learning signal processing for my subject and have some problems with the unit-power information signal. I refer to this paper: https://arxiv.org/pdf/1906.03949.pdf In this paper, they...
Asked on 12/24/2021 by Fzzyy
1 answerI have heard anecdotaly that sampling complex signals need not follow Nyquist sampling rates but can actually be gotten away with half Nyquist sampling rates. I am wondering if there...
Asked on 12/22/2021 by Spacey
4 answerNot sure if this is the proper forum to ask this question, but still I am trying my luck. I am looking for an application (in any area, medical, defence,...
Asked on 12/19/2021
1 answerI want to sample an ADC channel multiple times in one PWM cycle. I can trig any ADC channel in anywhere in my PWM timer counter now. But I want...
Asked on 12/17/2021 by Yasin
1 answerI am using the following formula to calculate SNR of a real world complex baseband signal sampled at 1x Nyquist.SNR = Rxy(tm)^2 / [...
Asked on 12/14/2021
1 answerDistribution for "joint multi-variate gaussian distribution" (joint MVG): $$f_{X}(x) = frac{1}{(2pi)^{n/2}prod limits_{i=0}^{n}sigma_i} ~~text{exp}bigg[-frac{1}{2} sum limits_{i=1}^{n}Big(frac{x_imu_i}{sigma_i}Big)^2 bigg]tag{2}$$Distribution for "multi-variate gaussian distribution" (MVG): $$f_{mathbf{x}}(x) = frac{1}{(2pi)^{n/2}~|text{det }C|^{1/2} }~~text{exp}bigg[...
Asked on 12/14/2021
1 answerI've got a set with MEMS microphones that measure audio signals at ultrasonic frequencies. The MEMS microphones have a PDM output which is then converted into PCM (this is necessary...
Asked on 12/12/2021
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