At last,an example of IF unit of radar echo generator system based on DDS is presented.This signal unit can generate radar IF echoes including general pulse,LFM,NLFM,PSK.是什么意思_At last,an example of IF unit of radar echo generator system based on DDS is presented.This signal unit can generate radar IF echoes including general pulse,LFM,NLFM,PSK.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句