![A BPSK signal s[n], real Gaussian noise w[n], and the received signal x[n] = s[n] + w[n] for SNR = 20 dB](https://www.wavewalkerdsp.com/wp-content/uploads/2023/12/HowToComputeSignalToNoiseRatioSNRInSimulation_signalNoiseTimeDomain-300x240.png)
Calculate Signal to Noise Ratio (SNR) in Python Simulation
Introduction This blog performs a simple math derivation for SNR and then verifies the results with a Python simulation. Check out these DSP blogs! Power
![Average power for a signal](https://www.wavewalkerdsp.com/wp-content/uploads/2024/06/averagePower.png)
Calculate Average Signal Power
Introduction Average signal power is important in calculating performance metrics such as signal to noise (SNR) ratio. Read on for how to derive and calculate
![](https://www.wavewalkerdsp.com/wp-content/uploads/2023/06/shakingHands.png)
How To Build a Professional Network
Introduction Everyone has heard the cliche about building a professional network. But with who? In this blog post I describe who to include in your
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Celebrating 100,000 Page Views!
WWDSP has officially reached 100,000 page views! Praise the Lord and thank you reader for visiting my website. See past milestones: 500 Page Views!!! 1,000
![Figure 2: Bartlett estimate of power spectral density (PSD) for QPSK](https://www.wavewalkerdsp.com/wp-content/uploads/2023/09/BartlettMethodPowerSpectralDensityPSDEstimate_QPSKPSD-300x150.png)
Bartlett Method Power Spectral Density (PSD) Signal Estimates
Introduction This blog gives a couple of examples for how the PSD for QPSK, AWGN and sinusoidal signals are estimated using the Bartlett Method. More
![Barker Code Length 11 Auto-correlation Magnitude](https://www.wavewalkerdsp.com/wp-content/uploads/2023/09/BarkerCodeAutocorrelationProperties_autocorrelationBarkerCode11-300x130.png)
Barker Code Auto-Correlation Properties
Introduction Barker codes are a special type of sequence which have excellent auto-correlation properties. This blog describes Barker codes, gives a mathematically example of the
![Equation for the power spectral density.](https://www.wavewalkerdsp.com/wp-content/uploads/2024/02/WhatIsPSD.png)
What is Power Spectral Density (PSD)?
Introduction This blog describes the power spectral density (PSD) mathematically, algorithms for estimating the PSD, and real world challenges in PSD estimation. The analysis in
![The outline for a typical technical paper. Expect to write in a different order than you would read the paper.](https://www.wavewalkerdsp.com/wp-content/uploads/2023/05/paper_outline-296x300.png)
How to Write a Technical Paper
Introduction A simple guide for how to write a technical paper. Describes what sections you need and the easiest order to write them. More blogs!
![Energy equation for a discrete-time signal.](https://www.wavewalkerdsp.com/wp-content/uploads/2023/05/energy_equation.png)
Power and Energy in Discrete-Time Signals
Introduction What does it mean for a discrete-time signal to have energy or power? This blog reviews energy and power in electrical circuits and then
![Starting GNU Radio Companion](https://www.wavewalkerdsp.com/wp-content/uploads/2023/04/gnuradio_companion-300x143.png)
Installing GNU Radio and B200 mini SDR
Introduction This blog demonstrates a quick way to install GNU Radio via apt and how to properly configure your system to load the firmware for