Social Media Ideas for Signal Processing

Pre-emphasis and De-emphasis Filtering in FM Systems

Simple first-order pre-emphasis and de-emphasis filters can boost FM receiver SNR by more than 13 dB by exploiting the spectral differences between signal and noise.

Обработка цифрового звука фильтрами

В данном материале в максимально простой форме изложены основы обработки цифрового звука, без подробного погружения в теорию цифровой обработки сигналов. Прилагается готовый код на...

Verilog RTL Design for RF Processing

I'm looking for expertise in Verilog RTL design for processing RF or communication signals. The design will be implemented on either FPGA or ASIC, and I'm open to assistance in cho...

The Benefits and Limitations of Pre-Emphasis and De-Emphasis in FM Noise Reduction

Pre-emphasis and de-emphasis boost noise performance in FM, but only up to a point—push the gain too far and you risk overmodulation.

How a Centralized Architecture Breaks the Radar Edge Processing Bottleneck

Streaming raw ADC data to a central ADAS SoC removes the edge compute bottleneck in automotive radar, cutting module power while enabling denser point clouds and deeper sensor fusi...

Understanding Pulse‑Amplitude Modulation: Natural‑Sampling Explained

Multiplying a message by a pulse train replicates its spectrum at every harmonic. See why a 1/3 duty cycle and 4x oversampling stretch the bandwidth roughly 12-fold.

FM Threshold-Extended Demodulators: Insights on FMFB and PLL-Based Designs

Worked examples quantify just how much the FMFB loop shrinks noise bandwidth. We also show how the PLL demodulator offers a simpler alternative for reducing threshold.

Signal Matrix Lab: user manual

Interference, Pre-Emphasis, and the Capture Effect in FM and PM Systems

Interference in FM grows stronger with frequency offset, until pre-emphasis flattens the curve. See why a signal just twice as strong as a rival broadcast can completely capture th...

Electrical Signals Sharpen Bioprocess Control

Electrical signatures could give bioprocess engineers an earlier view of cell health, detecting apoptosis, refining harvest timing, and moving monitoring from destructive offline a...

BFO Metal Detector

This BFO (beat frequency oscillator) metal detector system demonstrates the practical application of analogue signal mixing and processing techniques. Beat frequency oscillator pro...

Evaluating SNR Performance of FMFB Demodulators at High CNR

While feedback lowers the FM detection threshold, it offers no noise advantage over conventional receivers when the carrier power is strong. Discover why in this discussion and mat...

Introduction to Flat-Top Pulse-Amplitude Modulation

Flat-top PAM holds each sample’s amplitude for the pulse duration, weighting the spectrum with a sinc function. Here’s how that weighting leads to the aperture effect.