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PDM to PCM

Started by D3dalo 1 month ago2 replieslatest reply 1 month ago145 views
Hi, I have a PDM signal and I wanna convert it to a PCM signal. This signal is sample at 1MHz. This is the process that I am following:Filter the signal with a FIR...

'Alchemical' Forecasting and Restorative Up-Sampling

Started by Winkie 11 months ago10 replieslatest reply 1 month ago158 views
Dear DSPRelated friends:It's been a number of months since I prematurely tried your patience with ideas so far 'out-of-the-box' that I could be paying you for therapy...

IIR filters

Started by neirober 5 years ago14 replieslatest reply 1 month ago560 views
I am curious about the usefulness of IIR filters above 2nd order in DSP applications.  I know that first order IIR's are common, and presumably so are biquads. ...

Recent SPAM posts in the Forums

Started by stephaneb 3 months ago216 views
Hello, just a quick note to let you know that we are fully aware of the spam posts that made it into this forum lately, despite our spam filtering system.  The...

GNURadio BPSK Position Costas Loop and Clocksync

Started by RonWei 2 months ago6 replieslatest reply 2 months ago140 views
Hello folks,I'm having a problem understanding GNU Radio and the BPSK examples right now.In all examples in the www, a clock sync block is used first after reading...

Calculating optimal loop point in audio sample

Started by smjedison 3 months ago10 replieslatest reply 2 months ago127 views
(Disclaimer, I'm self-taught and mostly a beginner when it comes to DSP) Hi! I've recently been working on a problem to find the optimal loop point in an audio...

mitigating phase shift

Started by Detlef _A 2 months ago5 replieslatest reply 2 months ago127 views
Hi, I want to PLL on the line voltage, here in Europe 50Hz. I have a noisy signal and i use a prefilter with a complex pole pair at 0.999*exp(+/- j*2*pi*50/10000)....

IQ mag: Integer approximation of square root of the sum of two squares

Started by Robmar 3 months ago23 replieslatest reply 3 months ago176 views
Anyone knows the name of this algorithm and a fast and also integer alternative?Int16 Mag(int16 i, int16 q)(If abs(i) > abs(q)  Return abs(i) + abs(q) / 4;Else ...

Power Spectral Density PSD° of OFDM signals

Started by Ayicha 3 months ago11 replieslatest reply 3 months ago133 views
Hello guys,I'm quite new in OFDM techniques and i would really appreciate if someone could help me. Here is my problem. Assume i have a binary stream converted into...

math/money reasoning issue, Not a spam Please

Started by kaz 3 months ago6 replieslatest reply 3 months ago143 views
I am lost in reasoning the following joke:Posted on Quora by Lynda ClarkeTHE £50 pound noteIt's a slow day in the town and the streets are deserted. Times are...

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