超外差式接收 的英文怎麼說
中文拼音 [chāowàichāshìjiēshōu]
超外差式接收
英文
superheterodyne- 超 : Ⅰ動詞1 (越過; 高出) exceed; surpass; overtake 2 (在某個范圍以外; 不受限制) transcend; go beyo...
- 外 : Ⅰ名詞1 (外面) outside; external side 2 (外國) foreign country 3 (以外) besides; beyond; in ...
- 差 : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 收 : Ⅰ動詞1 (把攤開的或分散的事物聚集、合攏) put away; take in 2 (收取) collect 3 (收割) harvest...
- 接收 : 1 (收受) receive; reception; accept; [電學] receipt; receiving 2 (接管) take over; expropriat...
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Edwin armstrong develops a receiving circuit - the superheterodyne
艾德溫?阿姆斯特朗開發接收機電路?超外差式收音機。The receiver used two stages of down conversion. the total gain of receiver is more than 43db
接收支路採用超外差兩次下變頻的方式,實驗表明接收支路的總增益大於43db 。In receiver system development, there are some innovations in the design of high linearity and high dynamic range, also in the circuitry realization
接收機採用兩次變頻超外差式結構設計,第一中頻為高中頻。接收機頻率合成器採用dds來實現1hz的頻率解析度。The rf receiver consists of rf front end and baseband regulation module. the high - intermediate - frequency superheterodyne structure is adopted in the final scheme. the fine sensitivity of the receiver is achieved by two cascaded lna in the front of the system
系統採用超外差式變頻結構設計,兩級低噪聲放大單元級聯保證了接收機靈敏度,兩級增益控制單元實現了所要求的接收機動態范圍,並且整機的線性度也得到了保證。And typical super heterodyne structure in rereiver part. this scheme benefited to reduce frequency error and phase error, and had the advantages of good dynamic range and selectivity, short exploitation cycle and small venture in the given performance demand, etc. this system implemented a six - layer hoard rf handset model together with baseband by using advanced eda tool veribest 2000
系統設計應用hd155131的gsm900 dcs1800雙頻解決方案,發射機部分主要採用offsetpll方案,該方案有利於減小系統的頻率誤差和相位誤差;接收機部分採用典型的超外差式結構,它具有優良的動態范圍和選擇性,在給定的性能要求下具有開發周期短、風險小等特點。分享友人