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Windowed Sinc vs Parks–McClellan filter design [duplicate]

In the context of FIR filters, what are the tradeoffs between using a low pass filter designed using a windowed sinc versus an optimally iterative algorithm such as Parks-McClellan? When would you use ...
21 views

What's the interpretation of this Low pass filter spec?

From the filter characteristic mentioned in the table, is it correct to interpret following for LPF: Fs=192Khz Passband edge=43.8Khz; passband ripple=5mdB Stopband edge=112Khz; stopband attenuation=...
7 views

Single Kalman Filter: Resistance based on measurment of current and Voltage [closed]

Given measurement of voltage and current, which contain gaussian noise with known variance and a constant unknown offset $a_0$, I have attempted to estimate the resistance $R=\frac{V}{I}$. The ...
• 31
11 views

Zero Padding in Implementing FFT from scratch

I'm trying to implement an FFT algorithm from scratch. I'm using the recursive algorithm where if N is a power of 2, then I have M = N/2. The algorithm is divided into even and odd parts and I have ...
20 views

Building a wireless modem

I want to start a telecom startup and I am interested in building a custom modem. I have a few ideas regarding it's specifications like how it will not perform the common digital modulation schemes ...
22 views

Fractional Frequency Shifting a Discrete Signal in the Frequency Domain

In our current hardware-based signal processing pipeline, we have a time-domain signal $x[n]$ that we want to frequency shift by $f_0$. To do this, we multiply the signal by a complex exponential in ...
32 views

40 views

How to transform bits of data (0 and 1) to uniform distribution

Question: I am looking for a way to transform a series of 1s and 0s to be distributed 50% 1s and 50% 0s. How do I do that? Background: I am a software engineer working on writing code for a ...
• 101
23 views

Sinc function Energy [closed]

I am struggling for days trying to compute the energy of the follow sinc function. Any help appreciated ! Thanks. -(sin(π(t-2)/2))/(π(t-2)/2))
163 views
+50

Down-sampling a signal after convolution

I was trying to understand more about image compression using the Wavelet transform and I got quite confused about the down-sampling step. I took a picture from here for reference: At each step a ...
• 91
30 views

What ADC precision and sampling rate for record sound?

What ADC precision and sampling rate would you choose and why if You wish to record sound that has frequency components are 200 to 2000 Hz. And the signal-to-noise ratio of your microphone is 50 dB?
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48 views

how to tune and demo

How does one go about tunning your fm demod algorithm to a given carrier frequency. Consider the following algorithms that are present in this website: DSP Tricks: Frequency demodulation algorithms ...
• 103
47 views

How to use deconvolution code with an impulse response to achieve the original signal

I am trying to write a code for my thesis to deconvolve a recording with an impulse response so that I can achieve the original audio signal. I have written a simple code so that I can implement this ...
1 vote