Mega Hertz, Mega Samples, Mega bits, Mega Confusing
A review and discussion on the data paths between the RF (air interface) and the payload (the data interface), and the common and overloaded terms and units throughout the chain. This will be highlighted using a few different examples from different perspectives of the chain, including advanced topics like Digital Pre-Distortion (DPD) and fundamental ASIC areas like JESD204. Confusing but common terms like occupied RF bandwidth, synthesized RF bandwidth, single side bandwidth, Samples per second (with respect to converters), interpolation and decimation, samples per second (with respect to interface), symbols per second, bits per second, payload overhead, to bytes per second will all be explained with examples.
Determining Optimized Radio Settings for Specific Waveforms
Learn about the Automatic Dependent Surveillance-Broadcast (ADS–B) standard, which uses a 1 Mbit/s Pulse Position Modulation (PPM) scheme at 1090 MHz for airplane position sensing. From defining quality metrics to making a reproducible test framework, we will explore how radio settings can be optimized to maximize the reception of good packets for a specific hardware device.