I write about DSP and wireless communications at https://xitter.cf/t.co/NGVrONV8VQ. Author of Wireless Communications From the Ground Up - An SDR Perspective

Melbourne, Victoria
Joined July 2014
Upgrade your wireless skills! Get 58% off Wireless Communications 2nd ed. with a new Radar Signal Processing chapter (critical knowledge for wireless professionals in the current era of transformation and uncertainty): wirelesspi.systeme.io/wirele… #wireless #signalprocessing #radar
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Qasim Chaudhari retweeted
This might not be noticeable right away, but we don’t fly a directional antenna on our missions. We have the ability to, but directional antennas add mass, something we want to minimize as much as possible. We fly omnidirectional antennas. They’re smaller, and they also allow us to talk to the planet when we are under continuous thrust from our Hall-effect thrusters. The cost? Well, it’s steep. At our max range, 20 million miles from the planet, our link is 120 bits per second. Normal data protocols don’t even work. We’re talking in the same domain as Voyager: slow. It drives all the decisions on data and tactics we use to rewrite the way we explore. We already have a number of mission in the pipe that will require a directional antenna for data, but this one, our core mining mission, will not.
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To aid in understanding, I have put Python/MATLAB/Octave based software implementation of QAM/PAM/PSK, C4FM and CQPSK demodulators on my website, including several timing, frequency and phase synchronization algorithms #p25 wirelesspi.systeme.io/wirele…
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A guide on Constant False Alarm Rate (CFAR) detection in radars #radar #signalprocessing #wireless wirelesspi.com/adaptive-thre…
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I set out to explain Time-Bandwidth Product (TBP) in an intuitive manner, something I have never seen done before. wirelesspi.com/an-intuitive-… #dsp #signalprocessing #RADAR
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An introduction to design and implementation of Cascaded-Integrator Comb (Comb) filters wirelesspi.com/cascaded-inte… #dsp #signals #filter
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In addition to my earlier post on 2nd ed. of Wireless Comms book, the SDR course and 5G PHY eBook on multiple antenna communications is also included in the bundle. wirelesspi.systeme.io/wirele… #wireless #Signals #radar #dsp
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An interesting question for junior DSP engineers. How can two different signals, a sinc pulse and an LFM pulse, have an identical spectrum? Best to figure it out yourself first, then see the answer in the link below. wirelesspi.com/the-fourier-d… #dsp #signalprocessing #Wireless
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After years of writing on DSP, wireless comms & SDRs, I’ve compiled my most popular articles into a book: Signal Processing Recipes for Communication Systems. 🧠 Free download: wirelesspi.com/dsp-recipes 📗 Full-color paperback: amzn.to/427YMbK Hope it helps your journey!
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Part 2 of the article on I/Q signals: Two Birds with One Tone: I/Q signals and Fourier Transform. wirelesspi.com/two-birds-wit… #signalprocessing #wireless #DSP
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When a new member arrives at the DSP club, this is what they find at the club gate: I/Q signals. Perhaps a secret plot to keep most people out of the party? wirelesspi.com/two-birds-wit… #dsp #Wireless
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A description of how Goertzel algorithm works to evaluate the Fourier Transform without computing the Fourier Transform. wirelesspi.com/goertzel-algo… #signalprocessing
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The wireless comms bundle (Wireless Communications eBook + 5G eBook + the SDR Course) is now available at a discounted price of $49 only. I hope that you will enjoy sending your own text and image in the air in GNU Radio experiments. learn.wirelesspi.com/5g-phy-… #SIGNALS #wireless
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This article illustrates how a simple operation on paper like taking a derivative is computed through discrete-time techniques and serves as a flavor for what DSP is like. wirelesspi.com/design-of-a-d… #DSP #Maths
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Kalman filter has seen a phenomenal rise in our information-rich world due to its role in fusing estimates in time and space (autonomous vehicles, radar, industrial control, robotics, precision agriculture, drones and augmented reality). wirelesspi.com/the-easiest-t… #sensors #dsp
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