Frequency allocation challenges for ultra-wideband radars

Radar systems demand more spectrum to enable improved resolution of targets or for obstacle detection and tracking. The proliferation of WiFi communications has resulted in the “selling off” of many radio frequency bands, previously allocated to radar. A review of the IEEE Ultra wideband Standard and the process for obtaining frequency allocation points to significant challenges in future system acceptance. However, progress in new waveform development combined with rapid high speed digital processing may provide an accommodation. An example of UWB radar waveform is used to illustrate the issues.