A virtual instrument based integrated measurement system for Doppler navigation radar is developed. Using direct digital synthesis(DDS)technique,a kind of radar Doppler frequency simulator is introduced.
英
美
- 分析了機載四波束多普勒測速雷達的工作原理,采用直接數字頻率合成(DDS)技術(shù)進(jìn)行多普勒頻移模擬器的設計,通過(guò)數字控制,該模擬器可以產(chǎn)生高分辨率的多普勒頻率信號;