The band width of the radio-frequency signal for the spread spectrum communication can be spreaded to several times or even thousands of times the band width of the information signal. 扩频通信的射频信号频带宽度,可扩展到信息信号频带宽度的数倍乃至数千倍。
It is a truth universally acknowledged that radio-frequency spectrum is scarce in the U.S. 在美国,无线电的频谱不足是公认的事实。
Suppressing of Radio-Frequency Interferences in Chirp Radar Based on Averaging Range Spectrum 利用平均距离谱法抑制线性调频雷达射频干扰
Finally, it had explained the radio-frequency spectrum resources importance, the characteristic as well as the multi-frequency band naming, and proposed the measure of frequency spectrum resource management. 最后阐释了无线电频谱资源的重要性,特性以及多频段的命名,并提出了频谱资源管理的措施。
Frequency Locking of a Semiconductor Laser via Radio-Frequency Modulation Spectrum 采用射频频率调制光谱实现半导体激光器稳频
The RFID technological development strategy and the radio-frequency spectrum hope the jade(ⅱ) RFID技术发展策略与无线电频谱利用(下)