High‑Throughput Record and Playback of Ultra‑Wideband RF Signals: Challenges in Data Bus, SSD, and Memory
Recording and replaying ultra‑wideband RF signals (e.g., 1 GHz instantaneous bandwidth) demands a sustained data rate of 8‑10 GB/s. But SSDs slow down dramatically after their cache fills, PCIe buses become choked by CPU‑side lane limits, and memory gets hammered by multiple copies and transfers. Here’s why – and what the real bottlenecks are.