Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 8 years ago12 replieslatest reply 4 days ago2751 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

Generate 2KHz damped sine wave using DAC

Started by KousikBarathwaj 2 weeks ago15 replieslatest reply 4 days ago146 views
I would like to generate a 2KHz damped sine wave from the DAC of my microcontroller (STM32). How to impose the exponential decay lasting for 1second on the 2KHz...

Error in frequency estimation for low frequencies

Started by ueligiger 1 month ago28 replieslatest reply 6 days ago198 views
Hello everyoneWe want to use a chirp z-transform to determine the frequency of a signal more accurately. It works quite well, but we see that the accuracy is much...

FSK demodulation with repetitive impulse jammer

Started by Detlef _A 1 week ago1 replylatest reply 7 days ago128 views
Hi,I demodulate FSK (46 ks/s,3600/4800Hz,1200 Bd) and I have regular fat jammer pulses every 221 samples. Filtering away the pulses outside the useful spectrum 2k6-5k8Hz...

Maximally Decimated Polyphase Channelizer Help

Started by tkuraku 2 weeks ago3 replieslatest reply 2 weeks ago136 views
#python #Polyphase #ChannelizerI'm hoping someone can help me with this maximally decimated polyphase channelizer I've coded up. This is based on the fitler_ten_a...

How to design cic digital filter for sigma delta adc

Started by ahhh 4 weeks ago7 replieslatest reply 2 weeks ago166 views
My SD ADC modulator has a sampling frequency of 1.024 MHz, an input bandwidth of 1 kHz, an oversampling ratio of 512, a single-loop second-order structure, and a...

Occam's razor, Physics example

Started by Cedron 1 month ago3 replieslatest reply 2 weeks ago178 views
From the Wikipedia article:"Suppose an event has two possible explanations. The explanation that requires the fewest assumptions is usually correct....However, Occam's...

Beats in signals of three or more sinusoids. Possible discovery.

Started by JhnnsDvrk 3 weeks ago7 replieslatest reply 3 weeks ago212 views
#Python Hello, I have been on a journey trying to discover a way to outline ‘beats’ in signals comprised of three or more sinewaves. This project started since...

Calibration of MEMS Microphone with Reference Microphone in Acoustic Box: Seeking Guidance

Started by Karoline 4 weeks ago4 replieslatest reply 3 weeks ago114 views
Hello everyone, I am currently involved in a project where I'm using two distinct types of microphones connected to an Audio Precision system, comprising an APx525...

Matlab waveform generation with added AWGN for Deep learning classification.

Started by Samuelson 4 weeks ago2 replieslatest reply 4 weeks ago108 views
Hello,I am generating WLAN 802.11n/ac waveforms with 4 different modulation schemes (BPSK, QPSK, 16-QAM, 256-QAM) and feed the I/Q data into my Deep learning model...

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