General specification for the portable short - wave receivers with frequency measurement 可攜式短波測(cè)頻接收機(jī)通用規(guī)范
By contraries , traditional radio use diverse hardware set for each types of signal ' s demodulation , which is too complicated . the thesis describes a solution for software short - wave receiver 而在傳統(tǒng)接收機(jī)中這部分是用模擬硬件實(shí)現(xiàn)的,對(duì)每一種信號(hào)的解調(diào)都需要單獨(dú)的硬件來完成,硬件復(fù)雜度過高。
The subject comes from the cooperation project “ long distance navigation short - wave receiver ” between chengdu sine science & technology ltd . and automatization school of harbin engineering university . the auther was responsible for implementation of the rf receiver of the system . the rf receiver consists of a rf front end , 3 dds synthesizer 本項(xiàng)目來源于電子科技大學(xué)成都賽英科技有限公司與哈爾濱工程大學(xué)自動(dòng)化學(xué)院的合作項(xiàng)目“遠(yuǎn)距離導(dǎo)航短波接收機(jī)” ,筆者負(fù)責(zé)其中接收機(jī)射頻部分的研制,該射頻接收機(jī)包括一個(gè)射頻前端和3個(gè)dds頻率合成器。