SDR goes to war

摘要

THE JTRS IS WORKING TO BRING INTERCHANGEABLE SDR TO THE MILITARY, BUT WILL IT BE GOOD ENOUGH FOR COMMERCIAL APPLICATIONS? SDR (software-defined radio) is not a new technology. The industry has in the past made attempts to implement SDR, but these efforts have fallen short. What has sparked recent interest in SDR is the rise of innovative hardware and software technology that appears to offer enough flexibility, performance, and power efficiency at a price the market can bear. For example, wideband converters are now available that operate over a wide range of frequencies and can process incoming waveforms based on a specific bit resolution, and high-frequency processors can work with signals directly, eliminating IF (intermediate-frequency) stages and reducing cost.