230MHz无线窄带数传
230 MHz wireless narrow band data transmission
超高频窄带信号
UHF signal in narrow-band
超窄带调制
UNB Ultra Narrow Band Modulation
Burderhedral
超窄带光谱
Ultra-narrow-bandwidth(UNB) spectrum
超窄带滤光片
ultra-narrow band pass filter
超窄带载波信号
super-narrowband carrier signal
等效窄带法
equivalent narrow band method
光窄带滤波器
Optical narrow pass band filters
弧线窄带速度线
velocity line of arc line short band
混频窄带干扰
narrow-band noise with mixed frequencies
极窄带滤波器
extreme narrow band filter
近似窄带处理
approximate narrow band processing