MUOS will augment and replace the legacy UltraHighFrequency (UHF) Follow-On system (UFO) providing assured communications, including simultaneous voice, video and data, for mobile warfighters.
In terms of operation frequency, RFID systems can be divided into four categories: low frequency (LF), highfrequency (HF), ultrahighfrequency (UHF), and microwave.
根据工作频率来分，RFID系统可以分为低频，高频，超高频和微波四个波段。
3
The principles of detection technique and it's application to detect PD signals at ultra-high-frequency(UHF) are introduced.